MRT Music doorbell 、 electronic doorbell

Firstly Function introduction: This doorbell is mainly composed of single-chip microcomputer, horn and other components. The doorbell is controlled by a button switch to make a musical sound to inform the host that there are visitors

Secondly the chip has 38 built-in music, which can be used to select your favorite music as the ringtone by pressing the music selection button

Thirdly The doorbell has two different wiring methods: two-wire and four-wire

1. Two-wire method: you need to press and hold the doorbell switch, the music sound will be complete, and the music sound will stop immediately when you release it

2  Four-wire method: Press the doorbell switch once, the music sounds complete, after the music is played, you can press it a second time, pressing the switch continuously is useless

Fourth, application places: soft sound, pleasant to the ear, long-lasting sound, beautiful design, novel style, can be widely used in hotel rooms, family rooms and other places

Product parameter

1. Product Name: Music Doorbell

2. Rated voltage: AC220V / DC12V

3. Product material: fire-retardant PC / ABS