PAG-40-BT-V1.0 Digital Amplifier Module With Microphone Bass V0.1
These Audio Module Amplifiers can be used to play music from your smartphone and the included remote and JST wire lets you control the volume and change tracks. This product has a remote control and can be attached to an amplifier LCD screen. Volume bass control
by potentiometer. Support MMC/SD/MMA and other cards, support USB interface (U disk).