The store is for you!Long Range SignalThe penetrating wireless signal can be transmitted up to 300m in an open space and long distance even with many obstacles (doors, walls).36 Melodies and 4-Volume Levels36 CD quality ringtones are your choice by pressing the button on the receiver, with 4 adjustable volume levels 25dB-85dB.p> Waterproof DoorbellThe transmitter button made of superior material is waterproof to IP44 standard, stable performance is guaranteed for outdoor use, no worry for all weather conditions.LED FlashLED Blue Flash 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. Easy Installation2 Steps Plug the portable receiver into any mains, and stick the transmitter on the wall with provided patch or screw. The receiver does not require a battery. Unplug the receiver so that the chime no longer rings.Portable wireless doorbell kit with 300 meters range, with Blue LED alert and 36 melodious tunes at 4 adjustable volume levels, small DIY accessory to install in your home, office, hotel etc. to bring you more safety and convenience.300 meters long rangeThe signal can be transmitted up to 300 meters in an open space. Plug the receiver into a room at the back of the first floor, press the transmitter button on the ground floor, the two respond very well even with spaces, walls, doors between them.The frequency between the two is unique, you will have no worry of interference with other remote controlled devices.Easy to InstallSimply plug the receiver into an outlet and attach the transmitter to the wall or door frame using the adhesive tape or screws provided.36 Melodies and 4-Level VolumeOffering 36 tunes to choose from with a clear and pleasant sound, the doorbell enriches your daily life by entertaining you and your children. There are 4 volume levels available, you can adjust according to circumstances.Blue LED indicationWhen the button is pressed, a blue light flash will flash on the transmitter and receiver, clear indication .Packing:1 * Waterproof Transmitter(battery included)1 * Receiver1 * Double-sided tape< /p> 2 * Screws2 * Anchors1 * Screwdriver1 * Instructions for useNote :Remove the insulating strip before connecting the receiver.Even if the transmitter can withstand harsh climates thanks to IP44 protection, it is better not to expose it directly in the sun and in the rain.