Iphone 5 Stereo bluetooth earphone

Bluetooth version: V2.1
Transmission distance: 10 meters
Product Weight: 10g (g)
Continuous talk time: 3 hours Standby time: 100 hours
Charging time: 2 hours Charging Interface: USB
Volume control: seven bands, each stage variable 3db
Support: A2DP playback of high-quality pop music, low-power, single-microphone noise cancellation