1. Bluetooth version: V5.0+EDR.
2. Bluetooth protocol: HSP1.2, HFP1.6, A2DP1.3, AVRCP1.5.
3. Power input: 3.2V-4.2V.
4. Output: 30mW.
5. Load condition: 32ohm.
6. Rated power: 74mW.
7. Headphone battery: single side 70mAh, battery type 501515 plus protection board polymer lithium battery.
8. Charging box battery: 500mAh, battery type 902030 plus protective plate polymer lithium battery.
9. Charging power: 5V/120mA for headphones and 5V/320mA for charging box.
10. Transmission distance: 10 meters.
11. Frequency: 2.4GHz-2.48GHz.
12. Talk time: up to 5 hours.
13. Listening to the song: up to 5 hours.
14. Standby time: about 180 hours.
15. Single earphone weight: 5g.
16. Charge box weight: 45g.
Packing list:
Box x 1
Instruction manual x 1
Charging cable x 1
Charging box x 1
Bluetooth headset x 2
Large earbuds x 2
Small earbuds x 2