Features: The integrated security alarm system alerts you to any unusual activity, keeping your home safe. and Weatherproof: Built to withstand harsh weather, this doorbell boasts an IP65 waterproof rating, making it perfect for outdoor use regardless of rain or sunshine. Wireless Convenience: Enjoy the hassle-free installation of this wireless doorbell that does not require any intricate wiring, promoting a clean and simple setup process. Smart Features: Equipped with a fluorescent ring flash, the doorbell alerts with both sound and light, ensuring you never miss a visitor-ideal for large homes or where ambient noise is high. Specifications: -DB10 doorbell receiver Power supply: AC 100-240VAC/5-~60Hz Working current: Less than 5mA @ standby Doorbell music: 39 chord tracks to choose from Doorbell volume: 5-level adjustable (including silent mode) Wireless frequency: 433MHz Wireless encoding: eV1527 Wireless modulation mode: OOK Wireless reception sensitivity: -113dBm Working temperature: -10~50 Storage temperature: -40~70 Working humidity: 95% RH (no condensation) -DB20T doorbell transmitter (button) Power supply: 23A/12V battery Standby current: Less than 5uA Transmission distance: 150 meters (open area, no interference) Waterproof rating: IP65 Luminous color: yellow Wireless frequency: 433MHz Working temperature: -10~55 Due to different batches, there may be differences in product appearance and printed text, which not affect use Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Material: ABS colour: White Package Contents: 1 x Wireless Doorbell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.