DAYTECH
1.Doesn't need network, WIFI, line, or SIM card, Just plug and talk, No other payment except the electricity fee.
2.Signal distance: Floor 1-5, In the open area: 1500 Meters
3.USB charging or Battery powered: You could plug it in the socket to use, Or put the battery in to take it anywhere. ( Battery is not included, but you could buy the 18650 battery on your own)
4.Totally 21 channels, WIdely use in warehouse, mall, family, hotel and other place needs instant communication.
Note: A single device cannot be used alone, two or more must be used to call the intercom.
5.Easy to use: easy to set up and use, no need to install, you can take it to any place you want.
6.Wide range of use: This wireless intercom system can be used in a wide range of homes, offices, hotels, nursing homes, etc.
7.Note: A single device cannot be used alone, two or more must be used to call the intercom.