TEV TA-220 high performance all-in-one PA system has echo function, LED indicator, ABS case material, lightweight design, shoulder back easy carry, 6.5 inch full range speaker, 100Hz ~ 16KHz ± 3dB frequency response, 50 watt maximum power output, switching power adapter power supply, handheld lavaliere headset wireless mic, up to 8 hours charging time, 6-8 hours standby time, SD card / USB and line in audio input, 290 X 175 X 205 mm dimensions, 2.8 kg weight.