Waterproof Smart Bracelet with Heart Rate Tracking Color:Black can and useless CD are

can and useless CD are not included

7 inches Batteries 1 Lithium ion batteries required

Power: button cell (included)

Ready To Play: We provide battery for FREE which have been included in the package

Battery: 180mAh lithium polymer battery

Waterproof Smart Bracelet with Heart Rate Tracking Color:Black can and useless CD areFeatures: Durable & Long Standing TimeSolid IP67 waterproof design to use it 7 X 24 in all sports including swimming & diving. 10 Days standby time and 7 days working time in average. Curved Wide Color Screen3D curved touchscreen measures at 1. 61 X 1. 02 inch, with band extends to 9 inch max length, tender and easy to wear, super light weight and sporty, interpretation of urban new fashion. Smart Fitness TrackerTrack your exercise results, continuous