Bluetooth version:   V4.0  
Bluetooth profile: Hands-free headphones, A2DP, AVRCP V1.4
A2DP   Advanced Audio Distribution Profile (audio transmission)
(volume control, remote control Play/Pause as well as previous/next track) 
AVRCP  Audio/Video Remote Control Profile (remote control function) 
HSP      Headset Profile (headset functions) 
HFP      Hands-free Profile (hands-free functions)
(answer/ end/ volume control)
Range:  up to 10m 
Music playback duration: up to 15 hours
Input voltage: DC +5.0V ±0.25VA
Capacity: 400mA 
Charging duration: 3 hours
Weight: 200g