BT 4.0 Tennis Racket Motion Sensor

Presenting the New Stylish Limited Edition Wireless Smart Rechargeable BT4.0 Tennis Sensor Monitor Racket Sensor Motion Tracker Pedometer Watch for Pro and Amateur.
Featuring compact and lightweight design, no-tangle wireless connection with Smartphone, and accurate data reports, this small but powerful tennis sensor is wonderful innovative product for professional or amateur tennis players. It is easy installed on the tennis racket to monitor your max swing, analyze average smash so that you can understand and train your skills in a more sensible manner.