Wireless Connection: No need for complicated wiring, the doorbell connects wirelessly to your home security system. 32 Songs Smart Alarm: Choose from 32 different songs to play when the doorbell is rung, adding a personal touch to your home security. Waterproof Design: The doorbell is designed to withstand harsh weather conditions, ensuring it remains functional even in rainy seasons. Intelligent Doorbell: The doorbell is equipped with intelligent features that enable it to distinguish between genuine visitors and unwanted intruders. 1. 32 songs optional.( for doorbell button) 2. Doorbell, alarm, welcome multi-purpose. 3. Can learn up to 30 transmitters, no loss of power. 4. Support 1527/2262 code chip.(button) 5. Volume 4 adjustable.(No mute mode) 6. Support multiple doorbell transmitter, suitable for large house. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. voltage: AC100-240V Colour:As Shown Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 set * Doorbell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.