Home Wireless Doorbells With Receivers Self Generating 38 Ringtones 4 Level Volume Waterproof Long

Feature: 1. Wide Application: 2 wireless doorbell with two receivers, can be used in homes, villas, hotels, factories, as well as the elderly, patients, pregnant women, etc. 2. High Volume: 38 songs can be changed at will, with pleasant sound quality, including classic doorbell tones and music ringtones. 3. Self Generating Doorbell: When you press your finger, the kinetic energy is converted into electric energy, free of wiring, no battery. 4. Long Control Range: The wireless doorbell signal has strong penetration, can penetrate 3?4 walls, and the transmission distance in open areas can reach 200 meters. 5. Long Durability: The wireless doorbell is made of ABS material, which is resistant to high and low temperature, waterproof, and effectively prolongs the service life. Specification: Item Type: Wireless Doorbell Set Material: ABS Doorbell Power Source: Self generated Transmission Distance: Open Space: Approx. 200m/656.17ft; Indoor: Approx. 50m/164.04ftRF Frequency: 433MHz Receiver Power Supply: AC110-240V Ringtones: 38 (4 level adjustable) Ringtone Volume: more than 50dB/1mUses: Can be used in homes, villas, hotels, factories, the elderly, patients, pregnant women, one key calling.. Package List: 2 x Doorbell2 x Receiver2 x Sticker Note: Please supply power according to the voltage used, using other voltages may cause fire and product damage!