Subwoofer output 7w 4 , horn output 2w*2, 4</br>Build in lithium rechargeable battery 1800 mah offers up tp 6 hours of music playback</br>Usb flash drive , micro sd card input allow play music instantly</br>Stylish pu leather body and strap , back-lit led glow light</br></br>Product Description</br></br>2.1 outdoor heavy bass hifi Bluetooth speaker with 4 inch subwoofer, back-lit led glow light while speaker is power on, pu leather cover entire body and pu leather strap fashion design output very clear sound and heavy bass, dynamic sound effect, with a2dp Bluetooth, wireless stream music from any Bluetooth-enabled device such as your mobile phone, notebook, iPhone or iPad secure simple pairing for user-friendly operating10 meters operating range with usb flash drive and micro sd card supporting, with line-in function, suitable for pc, mid, tv and other audio device. Side panel control for volume + - , built-in lithium rechargeable battery 1800mahwith strap, easy to take out. Specification: Product size: 12.5x5.35x5.35horn size:2 inch subwoofer size:4 inch horn output: 2w*2,4 subwoofer output:7w,4 battery capacity: 1800mahfrequency response:100-20khz.</br><br/>http://www.amazon.com/gp/product/B01MTEP8NM