F9 TWS Bluetooth 5.1 Earphones Charging Box Wireless Headphone 9D Stereo Waterproof Earbuds Headsets With Microphone and touch control

9D surround sound, 5.1 dual-ear chip, large capacity, true wireless Bluetooth headset.

Graphene bass diaphragm, HIFI high-frequency technology, 10MM dynamic speaker unit.

Binaural HD call, play pause, answer hang up, summon Siri, volume adjustment, up and down song switching, automatic boot, automatic pairing, intelligent noise reduction, no delay in the game

Two connection methods: single / double free to use, single ear listening to enjoy alone, listening to HiFi stereo in both ears.

Specification:

1. Color: Black

2. Bluetooth version: V5.1

3. Support: HFP 1.7, HSP 1.2, A2DP 1, AVRCP1.6, SPP 1.2 and PBAP 1.0

4. Charging Voltage: DC 5V

5. Microphone sensitivity: -42Db

6. Working temperature: -10 to 50 °C

7. Frequency response range: 20-20000Hz

8. Sensitivity: 120dB+/-5dB

9. Transmission Distance: 10m

10. Charging Time: about 1 hours

11. Accumulated battery life: about 220 hours

12. Headphone battery capacity: 50mAh

13. Charging box battery capacity: 1200mAh

14. Weight: 103g

Package Includes:

2 pcs x earphone

4 pcs x ear cap

1 pcs x charging box

1 pcs x charging cable

1 pcs x user manual

Delivery 2-3 days