"Travel safely, please don't forget to take the key and close the water, electricity, gas, doors and windows."

Next door opening reminder,

" please don't forget to take the key, close the water and electricity, gas, doors and windows, and travel safely."

Voice can be customized by customers, and the fee is calculated separately. In addition, the function voltage sound voice is done according to your requirements. The cost of extra

For example:

Please close the door, alarm, or other reminder voice. Please turn off your mobile phone when you work hard, and we can do it as long as it is what you want. Samples can be produced on the day of fast shipment with loud sound and stable quality. Welcome to inquire.

Use three AA batteries, easy to install. It can also be 12vDC external