Chip: JL  AC5925F
Wireless Version: 5.0
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
Music Playing Time: 9h
Talking Time: 9h
Charging Time: 2.5h