Bracelet headset b7 smart bluetooth watch

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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 In terface: 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 Show more