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
Bluetooth Resolution4.2
Sensitivity-42dB
Frequency range

20-20000Hz

Working voltage3.2V-4.2V
Drive8mm

Charge time

45minutes for earphone, 1.5-2hours for charge case

Battery capacity

38mAh/per piece

Music time

one for 4-6 hours, and a set for 2-3 hours