Dilui Wireless Donnettes, 45 Melodies 5-Levels Volum and, IP55 Waterproof Wireless Carillon, Carillon Kit With 300 Meters, Flash Led, 2Delight Plugging High-performance transmitter: consumes very little current ; uses a CR2032 lithium battery that ensures up to 3 years of service; Ingress Protection Rate (IP) 55, well protected from dust and water; operation under temperatures between -4 F and 140 F; Resistant to extreme weather conditions 5 Ringing options: a 40 mm stereo speaker makes a rich and crystalline sound; 4 adjustable volume levels with a maximum level of 85dB intensity, also equipped with LED lights to help the hearing impaired to remember. Easy to install "Plug Play" This wireless carillon is easy to install And to use, all you have to do is plug the receiver into a wall outlet of the house and install the transmitter case outdoors with the included double-sided adhesive tape included. Installation performed within 3 minutes No need to pull a string, drill your wall Easy to adjust ringtone. There are more steps to confirm. Once the song set, simply press the "Music" button to select your favorite song, the receiver will automatically play the receiver when you press the button. Waterproof transmitter IP55. The IP55 protection index transmitter can operate between -4 F and 140 F, capable of withstanding difficult weather conditions. Enjoy the freedom to install it anywhere inside, on your outdoor door or in your garden. Waiting time in 1 years. The battery In built-in CR2032 lithium lasts up to 1 years, which avoids you to buy and replace frequently. In addition, thanks to its very low energy consumption, you do not have to worry about the battery life. Easy to install. just just. to connect the receivers to an electrical outlet. In the meantime, the transmitter can be attached to the door frame with screws or attached with double-sided adhesive tapes. All necessary accessories are included in the delivery for easy installation.