QAWACHH Automatically identify the host rechargeable battery and the power grids of various countries, supporting battery charging. Sound and light reminding at power failure for 72 hours. Abnormal voltage warning. When the grid voltage is too high or too low, it will remind you. High school bass, mute, four blocks of volume for your choice. Pause button can replace switch. When the power is cut off, press the pause button, the sound will stop and the flash will go out, and it will still be alerted when the next call is cut off again. Call power outage reminder, six kinds of power failure tones.
