Activity Tracker Armband - Fitness Tracker Wristband- Pedometer - Calorie meter - Distanc meter - Sleep monitor - Wireless- Waterproof - Music - Text - 1 Year No Problem Guarantee Smart Activity Tracker Armband, Fitness Tracker Wristband, Black, Health monitoring Functions: Pedometer, Calorie meter, Distance meter, Sleep monitor Phone Assistant Functions: Remote shutter to take pictures, MP3 Playback, Phone search, Phone call notification, Message notification Wireless, Waterproof, Rechargeable, 1Year Guarantee