Supports reading MP3 songs from TF card or USB flash drive Treble, bass and master volume can be adjusted independently Built-in Bluetooth receiver and FM radio function With AUX input port, can be connected to PC/Phone/CD Microphone input and guitar input, adjustable reverb Product: Class D Audio Amplifier Model: TB07 Amplifier IC: TPA3116 Decoder Chip: JL6951C (large IC, non-headphone chip, small IC) Input Voltage: DC12V Channel: Dual Channel Output Power: 2 x 50W Output Impedance: 3-4Ω (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 1 x Audio Amp Module 1 x Remote Control(Color and style are random, Not accepting designation) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.