General description Battery-free wireless doorbell that generates electricity through pressing, eliminating the need for batteries or wiring. Its minimalist design is simple and elegant, making it visually appealing for any home. This doorbell can be used with wireless receivers and smartphones, allowing for remote control of electrical equipment. Technical specifications Doorbell receiver: Power supply: AC100V-230V 50/60Hz Power consumption: 0.25W Ringtone: 38 ringtones Weight: 56g Ring volume: 50dB/1M Ambient temperature: -10℃ to +45℃ Doorbell transmitter: Transmission distance: 150M (open space) Radio Frequency: 433 MHz Ambient temperature: -20℃ to +60℃ Voltage: AC220V Colour: White Material: ABS Size: Doorbell receiver: 85mm x 52mm x 43-63mm Doorbell transmitter: 67mm x 33mm x 18mm Compatibility and accessories Plug Type: EU Plug Compatible with countries: Indonesia, Germany, France, Spain, Italy, and more Other information Package Contents: 1 * Doorbell Note: Light reflection and