Wireless Outdoor Doorbell RF433Mhz Wireless Bell For Home 30 Songs Waterproof Remote USB Smart Door Bell Security Alarm

SPECIFICATIONSBrand Name: NoEnName_NullOrigin: Mainland ChinaCertification: CEDoorbell Type: WirelessType: DoorbellsPower Source: DC Specification: Doorbell Receiver Name: Wireless doorbell receiver Music quantity: 30 pieces Output mode:horn Demodulation method: ASK Shell material: ABS Control method: equipped with remote control Product size: 56.5 * 33 * 5.3mm Working voltage: DC5V/1A Doorbell Transmitters Name: Single Button Remote Control Operating frequency: 433MHz Battery type: button battery 2016 * 3 Modulation mode: ASK Encoding format: EV1527 Shell material: ABS Product size: 45 * 45 * 14mm Feature: 1. High performance: Smart USB Doorbell has ultra-low power consumption, long service life, and a working temperature range of - 20-70 ℃, which can withstand various adverse weather conditions. 2. Modern and Practical Design: Our Wireless Doorbell has a fashionable appearance and practical functions. Lightweight and sensitive, it can be remotely controlled, providing you with qui