Features: Outdoor HIFI Bluetooth Radio Output very clear sound and dynamic sound effect With A2DP/AVRCP Bluetooth, Wireless Audio Stream music from any Bluetooth-enabled device such as your mobile phone, notebook, iPhone or iPad Secure simple pairing for user-friendly operating 10 meters operating range With USB and Micro TF supporting With Line-in function, suitable for PC’MID’TV and other audio device With FM Radio FUNCTIONS: USB/TF card slot ,AUX in, Two mic input jack, one Guitar input jack, DC 15V input, power on/off ECHO: for wired & wireless microphone MIC VOL: volume control of Wired & wireless microphone GT. VOL: volume control of Guitar Master Volume control Bass adjust, Mid range adjust, Treble adjust MODE button: USB,Bluetooth, FM Radio, AUX in REC: press to start or stop the recording to your USB or TF card. Recording through wired microphone or wireless microphone RPT: repeat function MIC Priority: when microphone is in use, the volume of other audio sources will decrease PREV: previous song, or previous radio station PLAY: press to Stop or Play NEXT: next song or next radio station LED: DISCO lighting LED switch SPECIFICATION: Bluetooth range: up to 10 meters Size: 2x 8” Woofers with 2” Horn Tweeters Output power: 280 Watts Connections: USB disk, Micro SD card reader, Microphone input jack Aux-in 3.5mm jack connection, Guitar input jack, TWS wireless connection Power supply: Built-in rechargeable Lead-acid battery 12V 5.5AH Play time: 5hrs with 50% volume Recharge power: 15V/4A Product size: 320(L) *320(W) * 710(H) mm Charge time: 5-6 hours (15V/4A