AddCon+ Official Manual

AddCon+ Official Online Manual

AddCon+ is a device that attaches to the left and right controllers of the Meta Quest 3 / 3S / Pro, adding finger tracking for use in VRChat and similar apps, as well as extra buttons and a wheel that can also be used in VRChat.

The buttons also support keyboard input, so they can be used as shortcut buttons outside of VR.

The product page

日本語マニュアルはこちら

Shiftall Inc.

1. Introduction

Thank you very much for purchasing AddCon+.
Please read this manual carefully and follow the instructions and precautions for proper and safe use. Before using the product, be sure to read the “Safety Precautions” section.

2. Setup Guide

These are the setup steps for using AddCon+.

STEP 1
In “Preparation / Before Use,” check the package contents, button locations and names, charging method, and other basic information.
STEP 2
Attach AddCon+ to the compatible controllers.
STEP 3
Install the dedicated AddCon+ software, “AddCon Manager,” from Steam.
STEP 4
Follow the setup wizard to connect AddCon+ to AddCon Manager via Bluetooth and calibrate hand tracking.
Using the Setup Wizard
STEP 5
Configure Button and Wheel Settings.
Button & Wheel Settings
STEP 6
Configure the VR application settings.
VR application settings

You can start using AddCon+ by following the steps above.

3. Safety Precautions

4. Preparation / Before Use

4.1 Requirements

To use AddCon+, you will need the following:

A Windows 11 PC that supports SteamVR 2.12.14 or later and has Bluetooth connectivity

Verified Bluetooth adapters : View the list

A controller compatible with AddCon+
Compatible controllers : View the list
A USB charger with an output of 5V / 1.0A or higher per port

4.2 Included items

Item	Quantity
AddCon+ Main Unit (Left)	1
AddCon+ Main Unit (Right)	1
USB Charging Cable	1
Safety Precautions / Warranty	1

4.3 Names of Each Part of the AddCon+ Unit

4.4 AddCon+ Touch Sensor Locations

4.5 Charging

Before using AddCon+ for the first time, please charge it first.

Connect the unit to a USB charger using the included USB charging cable.

The red LED lights up while charging.
It takes about 2 hours and 30 minutes to fully charge from empty (when the power is off).
The red LED turns off when charging is complete.

【Charging Precautions】

・Charge the product in a location with an appropriate ambient temperature of 10 °C to 35 °C (50 °F to 95 °F).

・Be sure to also read the “Safety Precautions” section.

4.6 How to Operate the Unit

4.6.1 Turning the Power On

Press and hold the Power / F1 button on AddCon+ for about 2 seconds or longer to turn it on.

After the red LED and green LED light up for 2 seconds, the green LED begins blinking slowly, indicating that it is waiting for a Bluetooth connection.

4.6.2 Turning the Power Off

While the unit is powered on, press and hold the Power button for about 3 seconds or longer to turn it off.
Note:If AddCon+ is not connected to AddCon Manager, the unit will automatically turn off after 20 minutes.

4.7 LED Indicators

LED Color (Pattern)	Status	Condition
Green Slow blinking	Waiting for Bluetooth connection	Not connected via Bluetooth
Green Two quick blinks	Bluetooth connected	Connected via Bluetooth
Green Blinking	Firmware update mode	In firmware update mode Note:If the unit remains in this state, click here.
Green Very rapid blinking	Firmware update in progress	Firmware update in progress
Red Solid	Charging	Battery is charging
Red Fast blinking	Charging error	An error has occurred during charging Note:If this state occurs, click here.

5. Attaching to the Controller

Attach AddCon+ to a compatible controller (hereinafter referred to as the “controller”).

Insert the thumb sensor section under the controller’s grip button.

While rotating the unit to the right, move it toward the joystick.

Adjust the position of the unit so that it fits along the controller.

5.1 Tips for Using the Knuckle Straps

If you tighten the knuckle strap too much, your fingers may not reach the AddCon+ buttons. It is better to slightly loosen the strap belt so your fingers can reach the buttons easily.

6. Application Settings

6.1 Installing Shiftall AddCon Manager

Install AddCon Manager from Steam. If Steam is not installed, install it from the Steam website.

https://store.steampowered.com/app/4350400/Shiftall_AddCon_Manager/

6.2 What to do in the Setup Wizard

6.2.1 Adding Devices

When you turn on the AddCon+, it will appear in the app.

Select two devices and click the “Connect to 2 Devices” button.

6.2.2 Hand Calibration

Click the “Start Calibration” button.

Hold the AddCon+ and open your hands to prepare.

Hold your hands in a closed (fist) position for 2 seconds.

You may grip the buttons or just have your fingers touching them.

Next, hold your hands in an open position for 2 seconds.

Calibration is successful when the confirmation screen appears.

Calibration Tips

Users with large hands or long fingers may have difficulty with index and thumb calibration. Check the sensor locations in the image below and ensure your fingers touch them firmly.
The last calibration data is saved even if the app or unit is restarted. If finger movement seems off, recalibrate.

6.2.3 Installing the SteamVR Driver

Click the “Install Driver” button for SteamVR.

6.2.4 Setup Wizard Complete

Setup is now complete.

6.3 Adding New Devices

You can pair devices without the wizard. Select ”+ Add Device.” Turn on the AddCon+, and two units will appear on the scan screen.

The pairing steps are the same as in the wizard.

6.4 Firmware Update

If the firmware is outdated, a clock icon appears in the device list.

Click the Firmware update.

Click “Update Available” in the firmware section, then click “Start Update.”

It may take several minutes; do not turn off the power.

6.5 Calibration from Home Screen

Click the “Start Calibration” button. The steps are the same as in the wizard.

Note: If you are having trouble with calibration, please see here.

Calibration Tips

6.6 Button & Wheel Settings

6.6.1 OSC Button Settings

Click the first icon to enter the preset screen.

Click the second icon to show the preset list.

Presets like “VRChat” are pre-configured.

Click a preset to change its OSC settings.

Example: Assigning Forward Movement to the Up Button

To assign the Up button to move forward, set the Up section as follows:

Action Type： OSC
OSC Address： /input/MoveForward
On Press： ✅
Type： Int
Value： 1 (Type/Value can also be Bool / true)
Note: If “When Released” is not set to 0, the character will continue moving.

Note: You can name presets as you like. Click the save icon (top right) to finish.

After finishing, click the save icon in the top right to return to the preset list. Click the home icon in the top left to return to the home screen.

Select the preset you want to use. When you click the current setting, the configured presets will appear; select the desired one.

Now, pressing the Up button will allow forward movement in VRChat.

Presets can also be edited from the “Edit” button on the home screen.

Button Status Display:

You can check the button settings for the current preset.

The current value changes when a button is pressed.

6.6.2 OSC Wheel Settings

Located at the bottom of preset settings.

Example for Camera Zoom:

OSC Address： /usercamera/Zoom
Scale： 2
Minimum： 0.0
Maximum： 300
Default： 100.0

6.6.3 Enabling OSC

In VRChat, open the Action Menu and select Options → OSC → Enabled.

6.6.4 OSC Operation Check

You can verify if OSC input is normal in VRChat.

Open the Action Menu in VRChat and select Options → OSC → OSC Debug.

The OSC debug screen will appear; press the configured buttons on the AddCon+ to see if they are displayed.

6.6.5 VRChat OSC Message Notes

For detailed OSC information for VRChat, please refer to the links below. (Latest information as of February 27, 2026)

Camera-related information https://docs.vrchat.com/docs/vrchat-202533-openbeta

Input-related information https://docs.vrchat.com/docs/osc-as-input-controller

As of March 30, 2026, VRChat’s “Close Camera” (/usercamera/Close) has an issue where pressing a button assigned to “Close Camera” while the camera is not open will cause the camera to close automatically the next time it is opened. Please be aware of this when using it.
The F1 button is also assigned to power on/off. Do not assign this button to a long-press action, as it will turn off AddCon+.

6.6.6 Keyboard Settings

You can assign keyboard shortcuts.

e.g., “Ctrl+C” for the Up button:

Action Type： Keyboard
On Press： ✅
Key： C
Key Code： (Auto-filled)
Ctrl： ✅

Click the save icon after configuring.

Click the circle in the preset list to activate it (the color will change).

Now pressing the Up button inputs “Ctrl+C.”

Of course, you can also change the preset settings from the “Presets” section in the OSC area of the home screen.

Select the keyboard setting you just configured.

6.6.7 Mixing OSC and Keyboard

A single preset can contain both OSC and Keyboard assignments.

6.6.8 Creating a New Preset

Click the ”+” button (bottom right) in the preset screen.

6.6.9 Changing OSC Host/Port

Go to Settings → OSC Settings. Click the save icon after editing.

Click the save icon after changing.

6.7 Detailed Hand Tracking Settings

Click the gear icon on the left side of the app screen to move to the detailed settings screen.

6.7.1 Finger Sensitivity Settings

You can adjust the touch sensor sensitivity for each finger.

Please adjust so that the value is close to “1.00” when the hand is closed (Close) and close to “0.00” when the hand is open (Open). You can adjust each finger individually for the left and right hands, or adjust them simultaneously.

If you experience issues in the VR space where “fingers do not bend all the way” or “fingers do not extend all the way,” please perform this sensitivity adjustment.

6.7.2 Input Mixing Settings

This determines the ratio (weight) of whether each finger’s curl follows the “touch sensor” input or the “controller trigger” input.

For example, if set to Touch 100% / Trigger 0%, you can completely clench your hand based solely on the movement of your fingers touching the device, without having to pull the controller’s trigger.

6.7.3 Open Hand Rig Adjustment / Closed Hand Rig Adjustment

You can finely customize the shape of the hand when open or closed to match your avatar.

※When using in VRChat, “Position Offset” is not reflected. Please use “Rotation Offset” to perform adjustments.

The configured settings can be saved as a file via “Export JSON” and reloaded via “Import JSON.” Please use this if you want to use different settings for each avatar.

6.7.4 Resetting Settings to Default

Click the circular arrow icon in the top right of any settings screen to reset to default values.

6.8 App Initialization

Go to “Initialize App” in the settings menu. This cannot be undone. The app will close; please restart it.

7. Use in VR applications

7.1 Use in VRChat

To use finger tracking in VRChat, you need to enable the setting.

Please follow the steps below.

① Open LaunchPad and select the gear icon.

Then select the arrow icon in the upper-right corner.

② Select “Controls” from the left-side menu,

then turn ON “Avatars Use Finger Tracking”.

7.2 Binding Settings in OVR Advanced Settings

After installing AddCon, you may need to change the binding settings in apps such as OVR Advanced Settings.

Follow the steps below to change the functions assigned to the AddCon buttons.

In step ⑤ above, OVR Advanced Settings is selected as an example, but if bindings are available for other apps, you can assign those functions instead.

For example, if you select VRChat and edit its bindings, you can assign functions such as showing or hiding the camera.

8. Usage Notes

8.1 About Bluetooth®

This product has a wireless range of approximately 10 meters in an unobstructed line-of-sight environment.

Actual operating distance may be shorter than this depending on obstacles, the installation environment, and PC performance.

8.2 Usage Restrictions

This product may only be used in Japan and the United States.
Wireless communication with all Bluetooth®-compatible devices is not guaranteed.
Bluetooth®-compatible devices used for wireless communication must conform to the standard specifications established by Bluetooth SIG, Inc. and must be certified.
However, even if a device conforms to the standard specifications, it may not be able to connect depending on its specifications or settings, and operation methods, display, and performance are not guaranteed.
Please note that we accept no responsibility whatsoever for any leakage of data or information that may occur during wireless communication.

8.3 Environments Where Operation May Be Affected

Using the product in the following environments may cause communication to be interrupted or slow down.
- Near microwave ovens, digital cordless phones, or other devices that use the 2.4 GHz frequency band, such as wireless audio devices or game consoles
- When the PC connected to this product is blocked by partitions or other obstacles
- When there is a broadcasting station or similar facility nearby and surrounding radio waves are too strong

8.4 About Use and Storage Locations

Do not place the product in locations with extremely high temperatures, such as areas exposed to direct sunlight or near heating appliances.
Do not place the product in dusty locations.
Do not place the product in locations subject to frequent vibration.
Do not use or place the product in humid locations, such as bathrooms.

8.5 Disposal

The left and right AddCon+ units contain built-in lithium-ion batteries.
When disposing of the product, do not dispose of it with general household waste (non-burnable waste). Follow the regulations of your local municipality.

8.6 Cleaning

Wipe the left and right AddCon+ units with a soft, dry cloth.
If the left and right AddCon+ units are very dirty, wipe them with a cloth dampened with water and thoroughly wrung out, then wipe them again with a dry cloth.
Do not use solvents or chemically treated cloths, such as benzine, thinner, alcohol, or kitchen detergent, as they may cause the unit to deteriorate.

9. Specifications

Communication Method	Bluetooth® LE
Battery	Built-in lithium-ion battery
Charging Method	USB Type-C
Charging Time	Approx. 2 hours 30 minutes (when powered off)
Continuous Operating Time	Approx. 130 hours
Dimensions	81.1 x 79.3 x 68.1 mm
Weight	Approx. 40 g per hand
Included Accessories	USB charging cable
Supported OS	Windows 11 / SteamVR 2.12.14 or later

10. FAQ

Question	Answer
What is the warranty period for this product?	The warranty period for this product is one year from the date of purchase. If the product was purchased by pre-order, the warranty period is one year from the shipping date.
The warranty card does not include the store name or other details. Is that okay?	If you purchased the product from the Shiftall website, we have a record of the purchase date, so the warranty card does not need to be filled out. If you purchased the product from a retail store or other seller, you can still receive warranty service within the warranty period by presenting documentation that proves the purchase date, even if the store name and purchase date are not written on the warranty card.
What order should I start the applications in?	The startup order of the applications does not matter. You can use AddCon+ even if you start Shiftall AddCon Manager after launching VRChat.
Which Bluetooth adapters have been verified to work?	Verified Built-in PC Wi-Fi / Bluetooth Combo Adapters Intel AX201 Qualcomm FastConnect 7800 Verified USB Bluetooth Adapters TP-Link UB500 TP-Link UB500 Plus ASUS USB-BT400 Plugable USB-BT4LE
Which controllers have been verified to work?	Controllers Verified for Installation： Meta Quest Touch Plus Meta Quest Touch Pro
Which knuckle straps have been verified to work?	Verified Knuckle Straps： For Quest 3 / 3S (Meta Quest Touch Plus Controllers) Meta Quest Active Straps (for Touch Plus Controllers) B0CT2YVKWF AMVR B0CJRK7B8J For Quest Pro (Meta Quest Touch Pro Controllers) GEEKRIA XNP62-02
I want to save and use different settings for each avatar.	You can create a new preset by navigating to "Presets" → "Preset List" and clicking the "+" button at the bottom right. By creating dedicated presets for each of your avatars, you can easily switch between your preferred settings. Click here for more details on presets.
I want to copy a preset.	You can export preset data by selecting "Export" from the three-dot menu (︙) of the preset you wish to copy. To create a copy, simply import that exported file using the button at the top right of the screen. Click here for more details on presets.

11. Troubleshooting

Symptom	Cause and Solution
The power does not turn on	The battery may be empty. Connect the USB charging cable, and once the red LED lights up to indicate charging has started, press and hold the main button for about 3 seconds. After that, perform a forced shutdown by pressing and holding the main button for 10 seconds, then reconnect the USB charging cable. If the power still does not turn on after the forced shutdown, disconnect the USB cable once, then try turning the power on again. If the issue does not improve after trying the above steps, please contact support.
Red LED does not light up while charging	Make sure the USB charging cable is securely connected. →See 「Charging」 Charge the product in an environment with an ambient temperature of 10 °C to 35 °C (50 °F to 95 °F). If charging is complete, the red LED will be off. If the issue does not improve after trying the above steps, please contact support.
Red LED blinks rapidly while charging	There may be an issue with the unit’s charging system or battery. If this issue occurs frequently, please record a video showing the condition of the unit and contact support.
Green LED keeps blinking / Firmware update failed	If the green LED keeps blinking without changing during the firmware update, the firmware update may not be progressing properly on the unit. If the unit remains in that state for 2 minutes, it will automatically restart. Please perform the firmware update again. When the firmware update is completed successfully, the LED will return to the normal slow green blinking pattern.
Battery life has become shorter	If both the charging time and operating time become extremely short, the built-in battery may be worn out. Please contact support.
Power turns off automatically	If the unit remains disconnected from AddCon Manager for 20 minutes, it will automatically power off.
Bluetooth connection cannot be established	In Windows Settings, turn Bluetooth off once, then turn it back on. Wait 15 seconds after turning it on, then try connecting in AddCon Manager. If it still does not connect, try restarting your PC. Restarting the PC can be effective when Bluetooth is unstable.
Bluetooth connects, but the connection is unstable or disconnects quickly	・If you are connecting AddCon+ using a Bluetooth USB adapter Depending on your environment, the Bluetooth connection may become unstable if the adapter is too close to the PC or if it is connected to a USB port on the back of the PC. Click here for a USB 2.0 extension cable. ・If you are using Bluetooth built into your desktop PC Depending on your setup, a Bluetooth antenna may be required. Please check whether an antenna was included with your PC or motherboard accessories. Bluetooth connections may also become unstable in the following situations: ・Your body is positioned in a way that blocks AddCon+ ・The Bluetooth USB adapter is covered by objects, or there are metal objects nearby ・Multiple other Bluetooth devices are connected at the same time Please move AddCon+ closer to the Bluetooth adapter, connect it to AddCon Manager, and check whether the same issue still occurs.
Calibration fails or an error occurs.	Make sure your firmware is up to date. If you are using knuckle straps, overtightening them may prevent proper calibration. Loosen the straps enough to ensure the controller won't fall, and try calibrating again. Depending on the shape of your hand or how you hold the device, your fingers might still be touching the sensors even when you think they are fully extended, or they might not be touching them when fully curled. Ensure all fingers are firmly touching the sensors during the calibration process. Click here for sensor locations. If your symptoms do not improve using the methods above, please contact support.
Fingers are not moving correctly.	Perform the calibration again and confirm that it completes successfully.
Fingers appear lifted even when clenching a fist.	First, recalibrate. If the fingers still appear lifted, go to "Settings" → "Finger Sensitivity Settings." By lowering the maximum value of the input range from the default "1.00," you can adjust the position that represents a 100% clenched fist Click here for more details.
Fingers remain bent even when opening the hand.	Go to "Settings" → "Finger Sensitivity Settings." By raising the minimum value of the input range from the default "0.00," you can adjust the position that represents a 100% open hand. Click here for more details.
Difficulty operating due to sensitivity differences between fingers.	Go to "Settings" → "Finger Sensitivity Settings" and adjust the output value curve for the specific finger to match your hand or grip style. Click here for more details.
Thumb position is incorrect or clips into the hand when clenching.	Go to "Settings" → "Open Hand Rig Adjustment" and "Closed Hand Rig Adjustment," and adjust the parameters while observing your avatar's hand. Click here for more details.
Fingers are twitching or jittering.	You can reduce jitter by increasing the "Filter" setting values. However, please note that this will increase input latency.

For any other inquiries, please contact Shiftall Support.

For a smoother support experience, please copy your system information via the ‘Contact Support’ button within the app and include it in your inquiry.

Shiftall Support is available here.

12. Trademarks and Other Information

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc., and Shiftall Inc. uses these marks under license.
Windows is a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries.
Other names, company names, product names, and similar terms mentioned in this manual are trademarks or registered trademarks of their respective owners.
Certification information is printed on the back of the unit.

13. Open source software license credit

You can view the license credits for the open-source software used in this product from the settings menu in the app.

14. FCC CAUTION:

Only for United States of America

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

15. AddCon+ Firmware Release Notes

2026/3/29 Version1.0.
- First release
2026/3/29 Version1.0.2
- Minor update
2026/4/10 Version1.0.3
- Resolved an issue of AddCon+ unintended powering on after stopping USB power supply.