Bluetooth 4.0 CSR8645 Amplifier Board 5W+5W APT-X Stereo Receiver Amp Module

DESCRIPTION:

No DC isolated power: for battery, making bluetooth headset.

It can be connected to two phones (the only way: boot automatically chainback last paired phone,the penultimate pairing the phone will need to manually connect).

With a call feature CSR8645 low power consumption the power is turned on the default maximum volume.

Amp using TI TPA6132 better sound quality.

GND and BAT of 3.7V or 4.2V lithium battery.

OUTL, AGND, OUTR balanced output can be directly connected to headphones, amplifiers, audio and other input devices.

COM for the key public side,the other end keys are connected VOL +, VOL-, PREV, NEXT, PLY.

M+ and M- are connected to the positives and negative microphone.