Versatile 150-watt active speaker for voice and keyboard monitoring, multimedia, press conferences, and home recording studios. Includes a high-performance MP3 player to play audio files via a USB stick. Revolutionary Class-D amplifier technology delivers immense power, incredible sound quality, and is super lightweight. Equipped with a 6.5-inch premium quality full-range driver for outstanding sound performance. Ultra-quiet 4-channel mixer with a 3-band equalizer. Three "invisible" microphone preamps with phantom power for condenser microphones and an instrument-ready input. Dedicated stereo input for keyboards, MP3, CD, etc. XLR "through" connection with microphone/line switch for linking additional speakers. Microphone stand integration system for use with a stand and arm. Built-in limiter for ultimate system control and speaker protection. Internal switching power supply ensures noise-free audio quality, superior transient response, and very low power consumption. Super robust, impact-resistant housing with an integrated carrying handle on top.