TDA7498E is a dual BTLD class audio power amplifier chip with under-voltage, over-current, temperature and other protection functions to output high power and HIFI sound quality. Supported audio input: Bluetooth compatible 5.1, AUX, USB sound card, U disk. Support mobile APP control: APP visual operation play mode, support iOS, Android. The use of large-area aluminum alloy material with special-shaped structure heat sink and fan support reduces the temperature and effectively ensures the full power operation of the product Volume knob design: The main knob adopts the rotary encoder used in high-end power amplifiers to achieve 360-degree stepless tuning, and the hand feel is smooth. Product model: XY-S220H Product Type: Audio Power Amplifier Board Power supply: DC-12-38V/10A or above Bluetooth version: 5.1 Audio channel: 2.1 channel Audio input: Bluetooth compatible + AUX + U disk + USB sound card Audio output: left and right channels + subwoofer Frequency range: 20HZ-20KHZ Volume adjustment: high-end encoder rotary button adjustment, smooth feel Large left and right channels: 160W/4---36V DC Output power: 80W/8---36V DC Maximum subwoofer: 220W/3---36V DC Output power: 160W/4---36V DC Protection mechanism: overvoltage, undervoltage, wave clipping, short circuit Unique functions: support Sinilink-APP, modify bluetooth compatible name, set bluetooth compatible password, switch on and off prompt tone Product size: 134mm*126mm*26mm Note: It is recommended to supply power above 15V size: 134mm x 126mm x 26mm Material: PCB colour: black Package Contents: 1 x Top cover 1 x lower cover 1 x circuit board 1 x Screwdriver 5 x Knob Cap 4 x M2 x 4 copper column 4 x M2 x 18 copper column 8 x M2 x 3 screws Only the above package content, other products are not included. Note: Light shooting 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.