Stable neckband means versatility for use conditions. Seamless switching between music and calls. Great sound with control. The headset supports Bluetooth v2.0 EDR with handsfree, Headset, A2DP(Stereo Music) and AVRCP(Audio Video Remote Control)profiles. Frequency Response is 22-18000 Hz and Total

Stable neckband means versatility for use conditions. Seamless switching between music and calls. Great sound with control. The headset supports Bluetooth v2.0 EDR with handsfree, Headset, A2DP(Stereo Music) and AVRCP(Audio Video Remote Control)profiles. Frequency Response is 22-18000 Hz and Total Harmonic Distortion is less than 0.5%. Music & Talk time up to 13 hours, Standby time up to 240 hours. Fast charging: up to 75 minutes of music time with 20 minutes of charging. Operating distance: 10m. Range of frequency: 2.4 to 2.4835GHz ISM band. Compatible with: Various Bluetooth enabled devices, for example mobile phone, PDA, laptops, MP3/4/5 etc.................