Please read the enclosed user manual carefully before using this product. Meet your perfect training partner - the Rival Punch Sensors, powered by POWA. This amazing, wearable boxing technology will change the way you train! Track your punches directly on your phone and get useful data to help you manage your boxing progress. Compact and waterproof, Rival Punch Sensors use Bluetooth® technology to connect to your smartphone and sync with the POWA Boxing App. Use the comfortable, adjustable wrist straps to attach one sensor to each wrist and forget you're wearing them. Now you're ready to engage in your normal training on the bag, on the gloves, shadow boxing and even sparring.
 During your workout, the sensors will not only count the number of punches you perform, but also measure your speed and acceleration. The POWA Boxing App will rate your punches using a five-star scoring system and provide you with an average punch score and total punch count at the end of your workout. Real-time data is automatically recorded in the POWA Boxing App so you can analyze your punches and adjust your training regimen accordingly. With a long battery life of 25 hours, these sensors are ready to go the distance with you no matter how hard you train! Included: 2 strike sensors (left and right) 2 wrist straps Charging box USB charging cable User manual Features: Bluetooth device pairing Sync with POWA Boxing app (available in App Store and Google Play) Compact charging / storage box Adjustable wristbands Waterproof sensors Battery life 25 hours.