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22.70$
Smart watch heart rate blood pressure blood oxygen information push IP67 waterproof full touch screen bluetooth smart watch
Children’s smart phone positioning watch mobile phone 1.44 touch screen can make calls
Bluetooth Version: 5.0
Feature: Ultra Low Power Consumption
Impedance: 16 Ω
Sensitivity: 90 db
Frequency Responce: 20 – 22000 Hz
Battery: 50 mAh Rechargeable
Charge Time: 2 hours
Working Time: up to 5 hours
Standby Time: 150 hours
Design: Wireless
Distance Range: 10 m / 3.94 inch
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