High Quality: The wireless doorbell is made of ABS material, which is non-toxic, harmless and recyclable, the material can resist dust, rain, and high temperatures. It has no electromagnetic radiation, so it?s perfectly safe for pregnant women. The remote transmitter button is rated IP44 waterproof, so it works perfectly outdoors.

Radio Operating Range: The doorbell receiver is highly sensitive. The transmitter button triggers the chime unit and the radio waves are covered all over the house and won?t interfere with each other; the range of action is up to 1000ft!

60 Different Tunes and 5 Volume Levels: The wireless doorbell has 60 different ringtones with 5 levels and adjustable volume from 20db- 80db. You can enjoy the tone music and set your favorite tones as you wish.

Energy Saving and Long Life: Ultra-low power consumption design, Sustainable Use of Energy. The transmitter battery can be used for over 15 months. Our wireless doorbell material is very durable, it can bear over 100 thousand clicks.

Installation: No additional batteries required for the 1 doorbell receiver, and easy to plug receivers into an electrical outlet. Remote transmitter button can be fixed at the door frame with the attached adhesive tapes or screws, and anchors which are included in the package.