TEV TA-120 compact durable PA system has 6.5" full range speaker, 100Hz ~ 16KHz ± 3dB frequency response, headset wireless microphone, VHF 170MHz-270MHz receiver module, lightweight design, ABS case material, echo function, LED indicator, SD card / USB and line in audio input, 6-8 hours standby time and up to 8 hours charging time, 3 kind of alert sound, switching power adapter power supply, 50 watt maximum power output.
