Fashion Necklace Design Mini Bluetooth Earbud Wireless Earphone Hand Free Car Headset Earpiece BDZ

Bluetooth:4.2

Input Power:DC5V;500mA

Battery:3.7V/400mAH

Charging time:1.0H

Frequency:2.4GHz~2.48GHz

Receive Sensitivity:-92dBm

Distance:5M
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