The TWS linkable sound system can be used as an independent PA system. Microphone and music can be mixed. Besides the playability of music via USB stick or SD card, the Bluetooth function can also play wireless music from the mobile phone. The sound system has an instrument connection for passive instruments with a transducer or pick-up, such as electric guitars, etc., and a stereo LINE input for connection to eg a keyboard, a CD player or a mixing console. The integrated amplifier is a powerful DIGITAL amplifier with great sound. Digital technology saves weight and energy, is reliable and guarantees lasting high performance. Ideal for sound reinforcement, presentations, musicians, karaoke, etc. Features: MP3 Media player Digital Amplifier 2-way Bass Reflex 450watts RMS, Max Power 800watts Bluetooth Interface Come With Remote Controller Characteristics: Soundsystem in stable plastic housing, also for outdoors 2-way bass reflex speaker technology 38cm / 15 "woofer with membrane in fabric thickness Dynamic Titanium Dome Horn driver Digital Amplifier saves weight and energy MP3 player for USB stick or SD card Remote control for the MP3 functions Bluetooth compatible to wirelessly play music from mobile phone Echo effect Aux connection (LINE-IN) via 2 RCA jacks Music and language can be mixed LINE-OUT connection via 2 RCA jacks, for looping on further active boxes handle Stand flange in the ground Package: 15 inch Active * 1 User Manual* 1 AU Plug Power Cable *1 5M RCA Cable *1 Remote Control * 1