iAlarm Security Alarm Wirele Door Bell Welcome Chime Waterproof 300M Long-range Remote LED Flash Doorbell 60 Songs Package include: 1set Door bell ( include 1pc pre button and 1pc dingdong) (BATTERY INCLUDED IN PRESS BUTTON) Waterproof With 1000ft Range, Plug in Cordle Door Bell Chime Kit with 60 Chimes & 5 Level Volume, LED Flash Doorbell Kit for Home & Apartment SIMPLE SETUP: Just plug the mini receiver into a socket and fix the transmitter on a wall with the acceories provided; includes 2 screws, 2 anchors and a piece of double-sided bonding tape 300 M/1000 FT ULTRA LONG WIRELESS RANGE: 1 plug-in receiver included; will not interfere with other equipment in your home or those of your neighbors; ensures you will never mi a visitor, even if you are a few rooms away or on another floor 60 CHIMES TO CHOOSE FROM: 1.1 in (29 mm) stereo speaker delivers rich and crisp sound; 5 adjustable volume levels with a maximum setting of 110 dB; pre Next or Previous button to easily choose from 52 melodies HIGH PERFORMANCE TRANSMITTER: Ultra-low power consumption Pre button uses a CR2032 lithium battery that boasts 3-year maximum lifespan;(BATTERY INCLUDED) Dingdong working with AC 90V-240V; IP65 dustproof and waterproof rating; Working Frenquency: 433MHz; works between -4 F to 140 F; withstands various harsh weather conditions MEMORY FUNCTION: Remembers your last melody and volume level after a power outage; no need to reset to your previous settings; convenient and easy-to-use design for an enhanced user experience Convenient Size After carefully researching customer feedback, we have upgraded the design of the receiver station, giving it a smaller size of just 2.8 (L) x 3.1 in (W), so that it won't block off any neighboring power sockets. Long Operating Distance With a reliable wirele range of 1,000 feet and strong signal penetration, the doorbell will never fail to alert you when someone shows up at the door. Enjoy a reliable and hale-free doorbell system at home, in factories, offices, clarooms, apartment blocks, villas, and other large areas. IP65 Waterproof IP65 waterproof and functional between -4 F to 140 F, the doorbell can operate in even the harshest weather conditions. Music to Your Ears The doorbell boasts an ample selection of 60 melodies from traditional doorbell chimes to jingles, certainly offering a chime that suits your taste. Memory Function Thanks to its smart memory function, it remembers your previous set melody and volume level - even after a power outage. Mute Mode The silent volume level doesnt disturb a sleeping baby and the maximum level of 110 dB is hearable by the hearing-impaired or even during a party.