Shop/Babble Mouth Tracker
Babble Mouth Tracker in its clear case
Official Tracker

Babble Mouth Tracker

Headset agnostic mouth tracking solution for VR.

A mouth tracking device for VR HMDs powered by the source-first Project Babble software. This kit contains everything you need to start with Babble, and a little more to support the project.

$100USD + shipping

Mount for your headset included free with the tracker

Pick a headset to continue.

Checkout is handled securely by our fulfilment partner PiShock.

In the box

  • Mount for your headset
  • Official Babble Mouth Tracker (with antenna and OV2640 camera)
  • USB-C cable (0.3 m)
  • USB-C to USB-A adapter
  • Babble sticker sheet*

*Subject to availability

Shipping is worldwide. The price of shipping isn't included in the cost and is calculated at checkout.

Babbles are now nearly caught up. New orders ship within 4 to 6 weeks.

If you would like to cancel your preorder at any time, contact babble@pishock.com or open a ticket on the PiShock Discord and we will get back to you within 48 hours.

45+
Expressions tracked
Wired or wireless
IR
OV2640 camera
PC
Any PCVR headset

About Project Babble

Lower-face tracking, built for VR

Project Babble is a lower-face expression tracking system designed specifically for VR headsets. It uses camera input to capture and interpret facial expressions, and works with your favorite VR social platforms like VRChat, Resonite and ChilloutVR.

Source First

Source code available to all users.

Compatibility

Compatible with VRCFT and Unified Expressions.

Open Platform

Open platform and accessible with any Social VR game via the Open Sound Control protocol.

Babble Compatibility

Babble supports all headsets capable of being used with PCVR

Valve Index, Meta Quest, HTC Vive, Bigscreen and Pico logos

Mounts available for

Valve IndexMeta Quest 2Meta Quest 3Meta Quest 3SMeta Quest ProHTC ViveHTC Vive Pro/2/EyeBeyond 1/2/2ePSVR2+ community mounts for more

*Mounts offered for some but not all compatible headsets.

See it in action

Your face, in VR

Check out what you can do in VR with your own Babble unit and the additional expression you unlock with mouth tracking.

From box to tracking

Three steps and you're talking

1

Mount it

Fix the mount to the tracker with the included screws and nuts, then clip it onto your headset.

2

Power up

Flip the switch to ON and plug in over USB-C. A green or red light means it's booting.

3

Track

Install Baballonia, pick wired or wireless, crop the camera feed to your lower face and calibrate.

Under the hood

Technical Specs

CameraOV2640 module
ConnectionUSB-C wired (UVC) or 2.4 GHz WiFi wireless
BoardESP32 with external antenna, OpenIris firmware
PowerUSB-C with on/off switch
SoftwareBaballonia on Windows (Steam or GitHub); macOS and Linux from source
IntegrationsVRChat via VRCFaceTracking, ChilloutVR, Resonite, any OSC app
Expressions45+ Unified Expressions
HeadsetsAny PCVR-capable headset; mounts for nine models
Cable0.3 m USB-C, plus USB-C to USB-A adapter
ShippingWorldwide, calculated at checkout

Already have one?

Follow the official setup guide to get tracking, and grab Baballonia, the Babble app, from Steam.

Looking to make your own addons or get more details?

Firmware, architecture, integrations and DIY build guides all live in the docs.

Documentation
USB 2.0 Hub

On a Bigscreen Beyond? Add the USB hub

A tiny 5-gram USB 2.0 hub that gives your Beyond four ports, so the tracker, audio strap and other accessories share one connection.

View the USB 2.0 Hub

Ready to bring your face into VR?

$100 plus shipping. Mount for your headset included.

Order the tracker
Orders are fulfilled and shipped by PiShock.PiShock