Active intelligent noise cancelling wireless headphone

Wireless Version: 5.3
Support Profiles: A2DP，AVCTP，AVDTP，AVRCP，HFP，SPP，SMP，ATT，GAP，GATT，RFCOMM，SDP，L2CAP
 Operation Distance: 10m
Transmitting Power:Class 2
Frequency Range:2.402 -2.480 GHz
Speaker: Ø40mm
Impedance: 32Ω
TF card Supported: 128M-32G
Radio Frequency Response: 87.5-108MHz
Rechargeable Lithium Battery: 350mAh