Smart Wireless Selfpowered Waterproof Doorbell Chime Elderly Caller 2*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: 100percent Brand New Material: ABS Plug Type: US 110 240V Power Supply: AC 110 240V 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 Package List: 1 * Wireless Plug in Receiver 2 * Self powered Transmitter . Note: