Used only once, almost brand new. Usado solo una vez, esta como nuevo. Perfecto para fiestas. No es necesario conectar debido a su batería recargable 6 Channel】It is able to plug in 6 different instruments together, such as guitar, piano keyboard, microphone, etc. 3 Band Balance meet the needs of various music style and the built-in reverb effect ensures natural and echo-like sounds. 【80 Watt】It has enough power for your needs, able to fit in different situations like live, studio, solo performance and practice, giving you more freedom to control your sound to be heard over the other musicians without pushing your amp out of its optimal operating range. 【Bluetooth】Provide with options of wireless connection, phone input, CD/MP3 input, and USB plugin, it is able to fit in the different connection types, it is convenient and useful with its master control, headphone input and DI output. 【Rechargeable 】It can run up to 6-8 hours depends on the volume you use after 5 hours charge. And it can work with a connection directly to the electricity. 【Condenser microphone switch】: The microphone interface is designed with 48V phantom power, compatible with condenser microphones and dynamic microphones.