With this Forecum FK-04 Waterproof Wireless Remote Control Door Chime Doorbell￡? you won?ˉt miss important deliveries￡? visitors or clients anymore! Its temporary sleek design lends a stylish look your home?ˉs exterior. And it installs quickly without the hassle of running any wires. When the transmitter button is pressed￡? one of 36 pleasant rings will sound and the LED light on the receiver will start flashing to notify you of your visitor?ˉs presence. Moreover￡? it has waterproof design and works great even on outdoor gates. Don?ˉt hesitate to give it a try!                                    Features            36 pleasant chimes for you to choose fromTemporary sleek design￡? add a touch of charm to your home?ˉs exteriorInstall quickly without the hassle of running any wiresWhen the transmitter button is pressed￡? the ring will sound and the LED light on the receiver will start flashing4-level adjustable volumeWaterproof design￡? work great even on outdoor gates                                                            Specifications            Melodies    36 Kinds for Selection    <br>Remote Button Dimensions    (3.19 x 1.77 x 0.91)" / (8.1 x 4.5 x 2.3)cm (L x W x H)    <br>Doorbell Dimensions    (3.94 x 2.36 x 1.06)" / (10 x 6 x 2.7 )cm (L x W x H)    <br>Color    White !#!amp!*! Yellow    <br>Remote Control / Receiver Distance    ?Y100m(in Open Air)    <br>Material    ABS    <br>Working Frequency    315MHz    <br>Receiver Operating Voltage    DC 4.5V￡? (3 x AAA Battery￡? not Included)    <br>Woking Current    ?ü80mA    <br>Static Current    ?ü0.8mA(Ultra-low Power ￡?Can Extend Battery Life)    <br>Power    ?ü2W    <br>Temperature    -10 ?? ~50 ??    <br>Weight    3.84oz / 109g    <br>Work Voltage of the Emitter    12V (23A 12V Battery￡? not Included)    <br>Sound    25-80dB (4 Grad Volumes)    <br>Work Electricity of the Emitter    ?ü15mA    <br>                                                            Package Includes            1 x Doorbell Receiver1 x Emitter1 x Manual1 x Cotton Piece2 x Screws