A kit for self-assembly, allows you to build a music box, bell with the ability to play 16 melodies. The device can also be combined with various toys, which will add sound effects to them. Specification: Model: Box-16 Working voltage: 4.5-5V Size: 48x42 mm Control mode: manual coding or external coding Codes for individual sounds (ABCD Coding): 0000: Machine gun 0001: Fire engine 0010: Ambulance 0011: Car engine 0100: Crickets 0101: Alarm 0110: Electronic signal 0111: Telephone signal 1000: Chirp 1001: Whistle 1010: Telegraph 1011: Birds singing 1100: Heavy machine gun 1101: Warning sirens https://elecena.pl/product/22620238/doorbell-music-box-16-melodies-diy-kit 2023-02-22 https://elecena.pl/product/22620238/doorbell-music-box-16-melodies-diy-kit 2025-10-29