The JOYO MA-10 series features dual channels specifically for related devices that are easy to switch. MA-10E:Switchable clean/overdrive channels 5" customized full frequency speaker. Rated power 10W (RMS), full frequency speaker dedicated to related equipment High quality Auxin jack for playing backtrack, 3.5mm stereo headphone output jack, ensure the sensitivity of music and no interference. In various power modes, you can use the included power adapter or 6 AA batteries, and the AA alkaline battery has about 3 hours of battery life. Logo will light up when power on.