The motion tracking X-Ring can remotely control the speed of your SayberX. The faster they move, the faster the stroke.Attach to sex toys, giving them a serious upgrade or use with anything that moves â let your creativity run wild! Motion tracking X-Ring remotely controls your stroke from anywhere. THE FASTER THEY MOVE, THE FASTER THE STROKE. How to use - Remote touch intimacy. Pair with APP - SayberX is bluetooth-enabled. It can also use the app to connect via WiFi. Choose your partner - Find your partner via screen name, send request and let your partner accept. Feel every motion - Feel your partner's movements control the tempo of your stroke. - The ring band included is stretchy and is for S/M/L finger sizes - As soon as you move the X Ring, it turns on and connects via Bluetooth. If no movement is detected after 5 minutes, the X Ring shuts off. - To replace the battery simply remove the casing at the back of the ring, replace the battery, and then refit the casing. - There is a battery level indicator in the app when the ring is connected. - Measurements 29 mm x 10.25 mm - Stretch band About the SayberX app - Free Download from App Store/Google play - Works with iOS/ANDROID phones or Tablets with bluetooth 4.0 - Pairs with "SayberX" (Masturbator) and the Unique "X-Ring" (Motion tracking remote control) - Let your "SayberX" be controlled (Faster/slower) by connecting to anyone, anywhere. anytime in (real time). - Connect with an X-Ring user and have your SayberX stroke controlled by their movements (in real time). "Play with each other on video chat and feel what your seeing"