SING-E ZQS4277 Factory New Double 4 Inch Mini Portable Bluetooth Speaker TV Computer Game Karaoke Charging Horn Tweeter Box

With BT/USB/TF card/MIC*3/FM/AUX/with remote control (but the motherboard does not need to be equipped with a receiver) + with display screen + USB with 5V voltage regulator / no lithium battery protection / potentiometer volume + with wireless microphone function
+XA8879D power amplifier+treble/box matching function
Speaker: Single 10-inch
Power: 50W
Battery specifications: 18650 lithium battery pack 7.4V/4000MAH
Accessories: Dual wireless microphones. Charging cable. Lighting