High-throughput input device for AI era

littenYº Pro

XR | Cybernetics | AI
9-DOF Rings & Full-body tracking
For Startups, Creators, and Gamers
Initial batch ships December 25, 2025

one controller too rule them all

Applications

Precision Micro-Gesture Recognition

Detects subtle hand movements for intuitive control in creative and professional applications.

Versatile Control

Seamless general-purpose interaction for XR gaming, coding, and specialized virtual environments.

Full-Body Tracking

Enables immersive experiences in gaming, VRChat and Metaverse. Support SlimeVR and Steam.

Sports and Fitness

Enhances training and performance analysis with real-time motion feedback.

Rehabilitation

Supports physical therapy and recovery through precise movement tracking.

Advanced Prosthetics

Powers responsive, AI-driven prosthetic control for improved mobility.

AI Training

Facilitates embodied AI development with accurate human motion data.

Sensor

Specification

  • 120 FPS
  • ±2000º/s gyroscope range
  • ±16g accelerometer range
  • High-frequency sensor fusion
  • Dimensions: 16.9 x 11.5 x 5.7 mm
  • Dimensions: 0.66 x 0.45 x 0.22 inches
  • Weight: 1.25 gram | ¼ teaspoon

Hardware

  • 6DOF IMU TDK ICM-42688
  • 3DOF TMR Compass AKM ak09940a
  • Dual core SoC
  • 2.4 GHz low-energy RF controller
  • Up to 4-Mbit RF speeds
  • 12 hours of battery life

What's Included

Kit

  • 8 Sensors, 9DOF each
  • 50 ultraslim silicon rings
  • 8 universal clips
  • Ear clip
  • 2 adjustable wristbands
  • Charger with quad-core SoC

Services

  • Android / iOS mobile app
  • WebSocket connectivity
  • SlimeVR connectivity
  • Free firmware updates
  • No subscription policy
  • Up to 24 sensors supported simultaneously

Charger

Specification

  • 8 RF sensor connections
  • 1 RF mobile connection
  • USB-C for HID connectivity

Hardware

  • Quad-core SoC
  • Up to 4-Mbit RF speeds
  • 24 hours of battery life

Connectivity

The Sensors send data to the Charger.

There are three gateways to access motion data from Chargers:

  • USB HID (Human Interface Device)
  • Wireless HID
  • WebSocket interface via a mobile device

Initially, littenYº Pro will provide the WebSocket interface and SlimeVR USB HID for the following data:

  1. Sensor ID
  2. Rotation quaternion
  3. Average acceleration vector

The WebSocket data is encoded in CBOR format.

We plan to extend USB HID and Wireless HID gradually, implementing the most popular interfaces sequentially.

The WebSocket interface introduces additional 5ms latency. However, it is straightforward to work with. We recommend starting development using the WebSocket interface, even for applications that require low latency. Once the AI models trained on WebSocket data are sufficiently mature, we can collaborate to optimize them and build them into the Charger firmware for improved performance. Alternatively, for more complex or proprietary AI models, we can provide direct access to the motion data via the mobile device.

High-throughput input device for AI era

littenYº Pro

XR | Cybernetics | AI
9-DOF Rings & Full-body tracking
For Startups, Creators, and Gamers
Initial batch ships December 25, 2025

Preorder