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, mic input jack, DC 9V input, power on/off MIC VOL: Volume control of Wired & wireless microphone ECHO: for wired & wireless microphone Master Volume control /Treble adjust / Bass adjust MODE: USB, Bluetooth, FM Radio, AUX in LIGHT SW: LED light switch REC: press to start or stop the recording to your USB or TF card. Recording through wired microphone or wireless microphone PREV: Previous Song, or previous radio station P/P: Press to Stop or playing/NEXT: next song or next radio station SPECIFICATION: Bluetooth range: up to 10 meters Size: 2 x 6.5” Woofers with 2” Horn Tweeters Output Power: 150 Watts Connections: USB disk, Micro SD card reader, Microphone input jack Aux-in 3.5mm jack connection Power supply: Built-in rechargeable lithium battery 3000mAh Play time: 5hrs with 50% volume Recharge power: DC 9V 1.5A Product size: 250(L) *250(W) * 560(H) mm Charge time: 4-5 hours (9V/l.5 A)