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 receiverPower supply: AC 100-240VAC/5-~60HzWorking current: Less than 5mA @ standbyDoorbell music: 39 chord tracks to choose fromDoorbell volume: 5-level adjustable (including silent mode)Wireless frequency: 433MHzWireless encoding: eV1527Wireless modulation mode: OOKWireless reception sensitivity: -113dBmWorking temperature: -10~50 Storage temperature: -40~70 Working humidity: 95% RH (no condensation)-DB20T doorbell transmitter (button)Power supply: 23A/12V batteryStandby current: Less than 5uATransmission distance: 150 meters (open area, no interference)Waterproof rating: IP65Luminous color: yellowWireless frequency: 433MHzWorking temperature: -10~55 Due to different batches, there may be differences in product appearance and printed text, which will not affect usePlug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onMaterial: ABScolour: WhitePackage Contents:1 x Wireless DoorbellOnly 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.