Wireless Doorbell ABS Black Self Powered 150m Range 433MHz with 2 Receivers for Home Hotel Factory AC

Feature: 1. Premium Material: Made of premium ABS, the wireless doorbell is exquisite, durable, reliable, practical and has a long service life, it is convenient to put anywhere. 2. 2 Receivers: The ABS wireless doorbell has 2 receivers, which can be used in different rooms or set separate corresponding ringtones. 38 musical ringtones with good sound quality and high volume can be chosen as you . 3. Self Generating: The black wireless calling bell is self powered, no need to worry about the battery, built in power energy generation modules, no battery and no wiring. 4. 150m Range: The signal of self generating doorbell can penetrate 3 to 4 walls and up to 150 meters in open areas, the doorbell is waterproof and rainproof. 5. Suitable: The 150m wireless doorbell is suitable for family, villa, hotel and factory, senior citizen, patient, pregnant can call with one key. Specification: Item Type: Self Powered Wireless Doorbell Material: ABS Weight: 165g 5.82oz Color: Black Suitable: For Family, Villa, Hotel, Factory, For Senior Citizen, Patient, Pregnant to One Key Call Doorbell: Power Supply: Self Generating Transmission Distance: more than 150m 164.04yd Without OcclusionRadio Frequency: 433MHz Receiver: Ringtone: 38(4 Levels Adjustable) Ringtone Volume: more than 50db 1m. Package List: 1 x Wireless Doorbell 2 x Receiver 1 x Double Sided Tape 1 x Use Manual Note: Please supply power according to the voltage in use, use other voltages may cause fire and damage!