Long-range signal The penetrating wireless signal can be transmitted up to 300m in an open and long distance space even with many obstacles (doors, walls). 36 melodies and 4-levels of volume 36 ring tones as a cd you have by pressing the receiver button, with 4 levels of adjustable volumes 25dB-85db. Waterproof bell The transmitter button in material Superior is standard with IP44 standard, a stable performance is guaranteed for outdoor use, no worries for all weather conditions. LED Flash blue flash blue and receiver is a visual indication For host and visitor, it is also a fun and thorough design for the hearing impaired because it turns on when used. Easy installation 2 not Connect the portable receiver to any sector, and stick the transmitter to the wall with patch or screw provided. The receiver does not require battery. Disconnect the receiver so that the carillon does not ring anymore. Portable wireless bell kit 300 meters of range, with blue LED alert and 36 tunes melodious at the 4-level adjustable volumes, small DIY accessory to install In your home, office, hotel etc. In order to bring you more security and more convenience. 300 meter long range The signal can be transmitted up to 300 meters in an open space. Connect the receiver to a bottom of the first floor, press the transmitter button on the ground floor, both respond very well with spaces, walls, doors between them. The frequency between the two is unique, you will have no problem interference with other remote controlled devices. Easy to install Just plug the receiver into a socket. and attach the transmitter to the wall or frame of the door using the adhesive tape or screws provided. 36 Melodies and Volume 4-levels Offering 36 tunes To choose with a clear and pleasant sound, the bell enriches your daily life by fun and your children. There are 4 levels of volumes available, you can set according to the circumstances. Blue LED indication The button pressed, a blue light flash will flash on the transmitter and the receiver, clear indication . Packing: 1 * Waterproof transmitter (Battery included) 1 * Receiver 1 * Double-sided adhesive tape 2 * Screw 2 * Anchors 1 * Screwdriver 1 * User manual Note : Remove the insulating tape before connecting the receiver. Even if the transmitter can withstand severe climates with IP44 protection, it better does not expose it directly. in the sun and rain.