Support: USB, TF card, AUX1 and just use 86X86MM general base box. 

Volume Adjustment:30-level electronic volume control.

Infrared remote control

Use new digital amplifier technology: low distortion, low noise, high efficiency, good sound quality.

High-fidelity stereo

Three audio options: One public audio (Cabling input) and two local source (built-in SD card + USB function).

Memory card function: built-in SD card, users can download and update through the card reader.

USB play function: support playing by insert the USB 

Single loop play

Power supply: AC230V/110V

Output power: 8W+8W (MAX)

Input impedance: 47KΩ

Output impedance: 8Ω

Total Harmonic Distortion: 0.03%

ROM: 4GB, Extended SD Card Capacity: 16G

Infrared remote control distance: ≤ 10M

Product size: 86 * 86 * 40mm

1 x Audio System