Sound US special SD-315D wireless mobile battery speaker

Features Specifications ● Power: 300W ● double launch, double sink, wireless microphone ● true multi-in-one, easy to operate both indoors and outside to be suitable for use ● audio input can be connected Walkman, USB, MP3, DVD, VCD, CD ● Built-in car DVD, VCD, CD, radio, USD, SD card ● Built-Bass 15-inch X1; horn tweeter ● Built-in rechargeable accumulator: 7AhX1 ● Built-in charging protection function ● Power Method: AC-DC dual ● Dimensions (HxWxD) : 438X434X750mm ● Weight: 29.3 kg http://www.ztgy365.com/shumawaishe/content/?333.html