[36 Melodies & 4-Level Volume] 36 CD-quality ringtones are your choice by pressing the receiver button, with 4 volume levels 25dB-85dB. [Waterproof Doorbell] The transmitter button made of superior material is IP44 waterproof, stable performance is guaranteed for outdoor use, no worry for all weather conditions. 2 Steps Plug the portable receiver into any power outlet, and stick the transmitter on the wall with provided patch or screw. The receiver does not require a battery. Unplug the receiver to stop the chime ringing. [LED Flash] Blue Flash LED on the button and receiver is a visual indication for host and visitor, it is also a fun and thoughtful design for the hearing impaired, as it lights up when in use. Features: Internal sounds: 36 chimes Waterproof (transmitter): IP44 Volume: Adjustable in 4 levels (25 dB ~ 85 dB) Operating temperature: -22 C ~ 65 C Wireless range: 300M/1000 ft maximum in open air Transmitter power: 1 x 12V 23A battery (included) 300 meters long range Waterproof outdoor wireless doorbell signal can be transmitted up to 300 meters in open space. Plug the receiver into a back bedroom on the first floor, press the transmitter button on the ground floor, the two respond very well even with spaces, walls, doors between them.36 Ringtones/ 4-Level VolumeOffering 36 tunes to choose from with a clear and pleasant sound, the waterproof outdoor wireless doorbell enriches your daily life by entertaining you and your children. There are 4 levels of volume available, you can adjust according to circumstances.Waterproof and dustproofIP44 waterproof and dustproof, the wireless doorbell can be used in the range of -20 -65 , You don't have to worry about the sun, rain, snow or other extreme weather conditions such as frost.Blue LED IndicationWhen the wireless doorbell button is pressed, the blue LED indicators of both transmitter and receiver will flash, gives you a visual notification, this is a great feature for the hearing impaired.What will you get?1 * Transmitter1 * Receiver,"