APP smart control, Bluetooth Player,Recharge battery,USB/FM, LED Display, Aux in, Karaoke,Power bank out 5V1A App operate to music play Portable design with 7.4V 2000mAh recharge lithium battery bluetooth player USB port for playing USB and power bank output(5V,1A) Digital karaoke input(not include microphone) 2.1inch sound system LED display light bright change/colour change/profiles light ON/OFF music EQ Music bass treble microphone EQ Microphone DSP Prevent howling pitch shifter volce change Revber Delay echo Multi-purposes fits either indoor or outdoor Woofer: 6.5" Tweeter Unit 4X 2.5" Power 40W Dimensions (MM) 230 x 230 x620