Vibrating Alarm Clock Watch Heavy Sleepers Silent Wake-Up Smart Bracelet Men Women Adjustable Wearable Vibration Wrist Band Ht30

Product parameters:Material: Food-grade environmentally friendly siliconeDisplay screen: LED display screenCharge mode: USBSupply voltage: DC=5VBattery capacity: 50mAhPedometer: G-sensorStep calculation precision: +-5%Number of step displayed: 39999 stepsWeight: 18GOverall dimensions: 215(L)*17(W)*8(H)mmOperation atmospheric pressure:860hPa-1060hPaProduct brief introduction:1.High sensitivity 3D acceleration sensor(seize the small movement, step calculation more accurate)2.Free transform for the step calculation(humanization design, one-time step calculation, as well as 24 hours step calculation,shift as you wish)3.Time/date(manual setting for the time/height/weight)4.calorie,distance(can check the motion informaiton in the bracelet)5.Motion data memory(Bracelet keeps the motion data for 24 hours,eliminate automatically by zero hour, intelligent and worry-saving)6.Silent alarm clock(can operate the setting on the bracelet, no complicated handle on the App)7.Timekeeping function(Use the bracelet to do the timekeeping, the motion/distance/time can be clearly seen)8.Bracelet is with the USB interface(Can be used once charged, very convenient)9.Li-polymer charging battery(Li-polymer lithium battery is safer, longer life span)