touch screen bluetooth amplifier home audio mini wall amplifier support bluetooth USB TF Bluetooth Stereo Music Panel Amplifier Specifications: 2.4-inch Display Key Touch Power Supply Mode: AC 110-250V Output Power: 2*20W/4*25W Audio Inputs one set; Output one set Audio Signal-to-Noise Ratio: 98dB Radio Function: Built-in digital automatic FM radio, 30 stations FM Range: 87.5-108MHz Bluetooth: Support Installation: 86 standard wire box, front wall Product size: 86*86*10mm Host parameters: Power supply AC220V(50HZ)allow110V-250V load 4-8ohm Output Power 2x20W/4*25W SNR 98dB Frequency response 20-20KHz Infrared remote control distance 10m BT distance 10m Product size 86*86*10mm The company continued to improve product performance, design specifications, subject to change, in kind prevail, without noticeprecautions1, the host is suitable for AC110-250V power supply, please install and debug under the guidance of professionals.2, please read this manual carefully, according to the instructions to install the guide operation.3, speaker cable, power cable, audio input cable, please carefully check the terminal.4, confirm all the cables are correct before starting.5, do not modify, remove the maintenance, upgrade this host.6, a long time do not use the host, please turn off the power switch. Host function description: 1. Audio format: Support MP3, WAV, APE and other audio formats.2. Bluetooth function: support external Bluetooth devices such as mobile phones for audio playback.3. External sound input: Support external sound source input to the machine, amplified output.4. Memory card function: external TF card, support 32GB TF card.5. U disk function: Connect U disk (support 32GB) to read music through USB interface, and easily set up family background music space.6. Volume adjustment: 27-level electronic volume adjustment function.7. Power-off memory function: memorize the state played before the last shutdown.