Features: * 36 tunes remote control digital LED wireless doorbell doorbell button * With this wireless digital doorbell, you can enjoy music in your own space and share the joy of knowing your friends are coming. * Simple, vivid, wireless installation design, easy and cost-saving installation, does not affect the decoration environment * The outdoor remote control range can reach 50-100 meters, suitable for families and high-rise residences. * Built-in anti-interference design to avoid interference between users. * Built-in dual speakers, clear sound, especially suitable for home, office, factory, hotel, etc. * The doorbell is powered by 2 AA batteries (not included) * 36 melodies to choose from, you can choose your favorite * Easy to install, there are double-sided stickers on the back of the remote control button * No wiring required * Note: One remote can work with multiple doorbell receivers, all of which have the same frequency. Specification: * Material: zinc alloy * color: White * Working method: wireless digital remote control, no interference with each other, ultra-long distance remote control over obstacles * Receiver operating voltage: DC 3V DC * Power: ≦2W * Working frequency: 315MHZ * Remote control/receiving distance ≧120m (open area) * Power source: 3V 2AA battery (not included) * Transmitter operating frequency: 315MHZ * Transmitter operating voltage: 12V (battery type: 23A 12V) * Transmitter operating current ≦15mA (calculated as 20 times per day, a high-quality battery can be used for one year) * Audio source: 36 audio sources to choose from * Dimensions (doorbell receiver): 9.5 x 5.5 x 2.5 cm * Dimensions (remote control): 7.5 x 3.6 x 2 cm *Quantity: 1PCS Package list: 1 x Doorbell Receiver 1 x Remote Control Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Tired of Cheap Quality? Say no! Made of high quality material, durable and practical to use. Perfect price-performance ratio, save you more money. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. 36 Tones Wireless Door Bell Chime Battery Operated Cordless Waterproof 100m.