B1 Bone Passage Bluetooth Hanging Ear Wireless Headset, Colour: Black (Memory Version)

Product parameters:
1. Bluetooth version: V5.0
2. Bluetooth chip: CSR
3. Bluetooth protocol: HFP, HSP, A2DP, AVRCP, BLE
4. Bluetooth chip: CSR8635
5. Transmission distance: less than or equal to 10 meters
6. Talking distance: less than 10 meters
7. Audio signal to noise ratio: 90dB
8. Response frequency: 80-5000Hz
9. Charging input: standard Micro USB, DC 5V/0.5-1A
10. Battery type: 3.7V lithium battery, 140mAh
11. Standby time: 120 hours
12. Working time: about 5 hours
13. Net weight: 36 grams

Packing list:
1. Earphone x1 pair
2. Earplugs x1 pair
3. USB cable x1
4. Manual x1