Smart Wireless Self-powered Waterproof Doorbell Chime Elderly Caller, No Batteries Required(1*transmitter+1*receiver)

Features: No battery self-generation, just press the button and kinetic energy will be converted into electric energy (Pressing force is stronger than that of traditional doorbells to ensure sufficient generated energy). Adjustable 4-level high volumes and optional 32 ringtones. Large button design with long lifespan, sensitive and convenient to use. Long-distance wireless working range, can reach a maximum value of 550in in open and batter free environments. IP47 waterproof and dustproof, no worry about wind and rain. Quick and easy installation without requiring wiring. Installation Steps: 1. Plug the doorbell host into the jack. 2. Tear off the double-sided tape on the back of the doorbell button. 3. Install the doorbell button on the door and the installation is completed. Specification: Condition: 100% Brand New Material: ABS Plug Type: US 85-260V Power Supply: AC 85-260V Optional Type: 1*transmitter+1*receiver, 2*transmitter+1*receiver No. of Music: 32 Waterproof Level: IP47 LED lights Mode: light off, chime+flash, flashlight Optional Package Weight: Approx.155g/6.1oz or 240g/9.4oz Optional Package List: 1 * Wireless Plug-in Receiver 1 * Self-powered Transmitter or 2 * Self-powered Transmitter