Housmile Wireless Doorbell Waterproof Door Bell Kit-500Feet Operating, 52 Chimes, 4 Level Volume, LED Indicator, 2 Push Button Transmitter & 2 Plug-In AC Receiver (No Batteries Required) - Black PREMIUM WIRELESS DOORBELL: Housmile wireless doorbell ranges up to 500feet (150M), ensuring that you will never miss a visitor again! And the best part? The volume is adjustable and you can choose among 4 levels from 25db-110db while there are 52 different chime choices! Forget annoying doorbell sounds, now you can have your favorite chime in the volume that you prefer.CE,FCC, RoHS certified. HASSLE FREE INSTALLATION: This doorbell kit includes all the tools you need to install your new doorbell in less than 10 minutes! Just plug in the receiver in any electrical outlet (AC), and mount the push button base on the wall with double-sided adhesive tape! For your convenience, you can change the 12V 23A battery that the push button transmitter is powered by, without disassembling the whole system! SMART LED FLASHING LIGHT: Every time someone pushes the transmitter button, both the transmitter and the wireless receiver will flash a blue light in a middle area. This way, your visitors can know if the bell rang, while you can be notified by the blue light in your indoor receiver even when you are wearing your headphones or even earplugs! UNPARALLELED QUALITY: The transmitter of this amazing kit is made from the most qualitative and waterproof materials, ensuring that your new doorbell will stay in your doorframe for years. Note also that the powerful battery of the transmitter will last for a great amount of time while the AC receiver will provide you with stable signal and vivid chime playing, making sure that no doorbell will be missed again. GET IT WITH CONFIDENCEBeing so sure about the great quality and performance of this amazing doorbell kit, Housmile offers you a 30 days' refund satisfaction guarantee and on top of that 1-year warranty! With nothing to worry about, try it today!