1. Standard: Bluetooth V2.1+EDR.
2. Working Range: 10 meters without challenge.
3. Frequency: 2.4GHz-2.4835 GHz.
4. Connectivity: point-to-point.
5. Phone Talking Time: 4-5hours.
6. Standby Time after Pairing: About 70 hours.
7. Standby Time without pairing, with power on: Auto power off after 10 minutes.
8. Output Power: Class II.
9. Power requirement: 15-50Ma while working.
10. Socket Diameters: 3.5 mm.
11. Battery Capability: Rechargeable Polymer Lithium Lon Battery 400mAh.
12. Charge: 5V DC, A/C adapter input/100 -240 V.
13. Charging Time: 2-3 hours.
14. Operating Temperature level: 0 Â° C to +60 Â° C. 15. Storage Temperature level: -20 Â° C to +85 Â° C. 16. Paring Password: 0000.
17. Matching: one-for-one, it can match multiple master gadgets, however by alternative pairing.
18. Operating Voltage: 3.0-4.2 V.
With built-in noise cancelling installment,this headphone can cut off outer noise by active noise cancellation.Noise cancelling level is 10DB-15DB.
Bluetooth: 2.4GHz frequency,10m working range
Adopts diameter 40MM high fidelity compound membrane loudspeaker,its sensitivity is 120DB.Built-in high definition high fidelity audio amplifier
Multi-functional Keys: Power On/Off, Previous/Next Song, Mute,Volume +/-, Light
Lithium battery: 400 mAh, charging time 2 to 3 hours, working time 8 hours, Long standby time of 180 hours