TEV TA-220 compact durable PA system has 50 watt maximum power output, echo function, LED indicator, 100Hz ~ 16KHz ± 3dB frequency response, 6.5" full range speaker, switching power adaptor power supply, VHF 170MHz-270MHz receiver module, handhelp lavalier headset wireless mic, 8 hours charging 6-8 hours using time, SD card / USB and line in audio input, 3 kind of alert sound, ABS case material, lightweight design, shoulder-back easy carry, dimensions 290 X 175 X 205mm, weight 2.8 Kg.