Features: High performance amplification circuit, 6-inch speaker, high-fidelity, loud and clear sound. Built-in UHF/VHF receiver module, stable signal transmission and strong anti-interference capability. Multifunctional amplifier, it can use a wired/wireless microphone, USB or memory card(max. 32G) to play music and recording. Support FM radio play, with built-in antenna. The amplifier can mounted on a stand for its 11mm screw hole on the bottom. High capacity rechargeable battery, powerful service life more than 5 hours. Comes with a lavalier clip-on microphone, MP3 controller for remote control. Ideal for classroom, small exhibitions, coaches, outdoor activities etc.