Hot Selling D9X Stereo Earbud Bluetooth Headset V4.2 Wireless Earphone
Bluetooth Resolution4.2Sensitivity-42dBFrequency range20-20000HzWorking voltage3.2V-4.2VDrive8mmCharge time45minutes for earphone, 1.5-2hours for charge caseBattery capacity38mAh/per pieceMusic timeon
- Model: Hot Selling D9X Stereo Earbud Bluetooth Headset V4.2 Wireless Earphone