B39 Wireless Bluetooth V5.0 Headset (Red)

1. Drive: 40mm 2. Impedance: 32 OHM 3. Bluetooth version: V5.0 4. Bluetooth frequency band: 2.4GHz 5. Power level: CLASS II 6. Bluetooth distance: barrier-free 10 meters 7. Frequency response: 20-20000Hz 8. With A2DP/AVRCP high-quality stereo audio transmission and remote control protocol 9. Charging time is about 1 hour 10. Talk time is about 10-12 hours 11. Music time is about 2-3 hours 12. Standby time is about 120 hours 13. Battery capacity 400mah/250mah 14. Charging power supply: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger) 15. Compatible mobile phone: compatible with Android, Apple, Microsoft, Saipan system 99% of mobile phones with Bluetooth functionSpecification: Package Weight One Package Weight 0.33kgs / 0.73lb One Package Size 18cm * 12cm * 8cm / 7.09inch * 4.72inch * 3.15inch Qty per Carton 20 Carton Weight 7.90kgs / 17.42lb Carton Size 38cm * 26cm * 42cm / 14.96inch * 10.24inch * 16.54inch Loading Container 20GP: 642 cartons * 20 pcs = 12840 pcs 40HQ: 1491 cartons * 20 pcs = 29820 pcs