Product Feature:

1. Bluetooth/USB/TF/FM/AUX with Karaoke (wireless microphone optional)
2. 20W Hi-Fi classic D amplifier system
3. Bluetooth 4.2 version  
4. USB support MP3/WMA audio format
5. Treble and Bass control
6. FM PLL digital tuner
7. 4 digit LED display (red)
8. Digital ECHO for Karaoke
9. Built-in sealed Lead-Acid battery 12V 2600mAH. 
10. Fully remote control (optional)

Dimension & weight:

• Dimension: 295 X 178 X 112mm (WxHxD)

Function and control:

• Power (push);
• Mode; Play/Pause; Previous; Next; Folder, DEL, Repeat, REC (tact switch*8)
• Volume, Mic. Volume, ECHO, Treble, Bass (rotary *5)
• Mic. (6.3mm)*1; AUX (3.5mm) , USB*1, TF*1, , DC in*1(Charge)
• Indicator: Charge, Battery low

Output Power & speaker impedance:

• 20W @10% T.H.D.; speaker: 5.25”, 4ohm