Wireless Waterproof Doorbell wall Plug In Receiver Adjustable Volume(Black) The product is shipped based on the color or size of the main image of the product page. Colour:black FeaturesHigh Quality: Our wireless doorbell is made of ABS material, which is non-toxic, harmless and recyclable, the material can keep itself against from dust, rain and high temperature. It has no electromagnetic radiation, so it¡¯s perfectly safe for pregnant women. The levels of protection of remote transmitter button is rated IP44 waterproof, it works perfectly outdoors.Radio Operating Range: The 2 doorbell receivers are highly sensitive, 1 transmitter button triggers 1 chime units and the radio waves is covered all over the house and won¡¯t interfere each other, the range of action is up to 1000ft in the open area ensures you can hear the bell and answer the door or sign for the package in time.38 Different Tunes & 3 Volume Levels: Our wireless doorbell is provided with 38 different ringtones with 3 levels adjustable volume from 20db- 80db. You can enjoy the tone music and set your favorite tones as you wish.Energy Saving & 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 times click.Installation & 100% Guarantee: No 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.SpecificationsMaximum 1000ft operating range in open area38 unique ringtones3 volume levelsLED indicatorsTransmitter battery: A23 12V Alkaline BatteryVolume range: 25 to 80dBDimension: Receiver: 2.56 x 3.74 x 0.94in; Transmitter: 2.01 x 2.95 x 0.79inPackage ContentsOne transmitter and one receiversIncludes double sided tape, screws, doorbell sticker and battery for transmitter