Weight:Earphones: 3.6g (Single earphone) Frequency Range:20Hz-20000Hz Sensitivity:-88dB (-80 - -92) Bluetooth Version:Bluetooth 5.0 Wireless Range:10 M (30ft) / Class 11...
Key Features Slim, Stylish, and Durable Band Measure Blood Pressure, Heart Rate Monitoring, sleep monitoring,  Record Your Exercise Routine Data Such...