Ultra easy to use with its three memory keys with pictures. With the keyboard with large widely spaced keys the numbers can easily be formed. With the memory keys with pictures you can store 3 numbers for which a simple press of the button will be sufficient to call directly. Adjusting of the volume of the horn with cursor for easier use. Sound level of the ringtone maximum 85 dBA at one meter. Indicator light. Ability to mute the ringtone. Slightly tilted base in order to facilitate its use. Can be put on a table or hung on the wall.