Dual Driver In-Ear Bluetooth Headphone, 20h continuous play

Dual Driver In- Ear Neckband Bluetooth Headphone, Qualcomm Bluetooth Chip,20H continuous playing, by Shenzhen TWS Master technology co., limited

Private Mould

1.Bluetooth Version: V4.1

2.Chipset: CSR8640

3.Bluetooth Profiles:HSP/ HFP/ AVRCP/A2DP

4.Transmission Distance: ≥10m

5.Music play time/Talk time:≥15H
6.Charging Time:≤2.5H

7.Standby Time:≥240H

8.Battery Capacity: Li-Polymer Battery3.7V/125mAh*2

9.Frequency Range:20Hz~20KHz

10.Operating Temperature:-30°C~+70°C

11.Speaker size:Φ6mm+6mm

12.Sensitivity:105±3dB

13.Impedance:16Ω
14.Cable length:22±2cm

15.Neck cable length: 300mm

16. Waterproof: IPX5