CACAZI Wireless Doorbell No Battery Need Waterproof Doorbell Cordless Remote AC 110V-220V EU US Plug

Features AC100 220V Battery free wireless doorbell no battery need and no wire It uses unique energy harvesting technology and ultra low power wireless technology with worldwide patents pending Help you to save your money and power When users press the button energy converting module inside will change the mechanical energy into electric energy Then the wireless module of the button sends the signals to receiver The receiver receives the signals and plays music react Specification WaterProof Power AC100 220V receiver Self powered push button Working range 120m in open areaRF Frequency 433MHzVolume 3 files can be mute Sound Level 85dBA 3ft receiver Power Consumption 820mW receiver Operating Forces 10N push button Dimensions 806047mm receiver 794433mm push button Ring Tone 36 polyphony ring tonesColor White ABS Plug EU US Note Press the pressure is slightly larger than the traditional doorbell to ensure adequate power generation Package includeds 1 x Indoor Receiver1 x Outdoor Transmitter1 x English User Manual1 x Double sided Adhesive Tape Details pictures