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22.70$
Smart watch heart rate blood pressure blood oxygen information push IP67 waterproof full touch screen bluetooth smart watch
Ceramic knife secret seal, size: 9.5×4.5cm, color: multicolor optional, material: Saigang + ABS, packing: OPP
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
Waterproof Wireless Doorbell.Smart home Door Bell Chime ring 1 button 2 receiver 110v 220v
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