F9-8 TWS Bluetooth 5.1 Headphones Charge Display Premium Wireless Headset.

Features:
- 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.
- Two connection methods: single / double free to use, single ear listening to enjoy alone, listening to HiFi stereo in both ears.
- Binaural HD call, 5.1 automatic boot pairing, CVC8.0 built-in active noise reduction IC.
- It features 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.

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
15. Package: retail package

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