Bracelet headset b7 smart bluetooth watch

Screen size: 0.66
Appearance size: 91*81*62
Material : OLED
Battery capacity: 100MAH
Product weight; 40G
Body memory: 256
Wearing style; wristband
Mode of operation: push button
Interface: USB 2.0
Wireless distance; 5m (inclusive) -10m (inclusive)
Wrist strap material; TPU
Color classification; blue
Function; Bluetooth call
Color; black, white, gold

Function Description:
1, sports records (pedometer, calorie burning, mileage).
2, sleep monitoring
3, standby for about 20 days
4, can answer the phone, call reminder, call voice report
5, time, month, week display
6, heart rate monitoring
7, the alarm clock
8, low battery voice alarm
9, one key clear