Content:
bluetooth
audio amplifier board,bluetooth stereo amplifier module,class D mini bluetooth
speaker board ,class D bluetooth audio amplifier module
Bluetooth V2.1+EDR
Headset profile, Hands free profile, Advanced Audio Distribution Profile (A2DP) and AVRCP
Frequency range: 2.40GHz-2.48GHz
Transmitter power: Class 2
Working distance range: 10m
Talk time: up to 18 hours
Working time: up to 8 hours
Charge time: 2.5 hours
Battery: Li-ion battery 3.7V 320mA
Charge Working Voltage: DC 5V 500mA or adaptor DC 5V 500mA
Charge port: MINI USB
Frequency Response: 20-20KHz
Standby time: up to 200 hours
with 3.5mm audio input
volume control:V+/V-
output:2*3W
With phone hand
free calling
can use USB
port to charge
