Hi Move W4S Smart Bracelet Heart Rate Monitor Sports Tracker Body Temperature Monitor Stylish Wristband LED light is powered by

LED light is powered by 2 x AA batteries (not included)

1 x ATOPACK DOLPHIN Cartridge

Step 2: open the WiFi of your mobile phone

High elasticity to fit any steering wheel in cars

Hi Move W4S Smart Bracelet Heart Rate Monitor Sports Tracker Body Temperature Monitor Stylish Wristband LED light is powered byProduct Features: A Touch Key Screen on the Bracelet It's more convenient to read the time, steps, mileage, calorie and goal. 0. 96 inch OLED Touch Screen Big Screen Big screen size with high definition picture displaying gives you great experience. Remote Notifications Smart bracelet will vibrate when receive phone, information. Even the mobile phone is in a nosy environment. Still dont have to worry about missing important calls and messages.