The MDJ95 is a battery operated party station with many unique features. Among them are a USB input, SD card reader and also BT function so you can play your favourite tunes from your phone or tablet wirelessly. Run this speaker from the mains or take anywhere with the built-in battery, lasting up to 3-4 hrs of continuous play! Media player with USB/SD/BT and Aux input Powerful 100W amplifier Using BT wireless technology for audio streaming LCD screen with MP3 time information 2 Microphone inputs (6.3mm Jack) Echo effect for microphone Built-in battery for 3-4 hours operating time Easy handle to carry your party station