Door Chime, METAK Wireless Door Open Contact Sensor Alarm with 500 FT Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering, 2 Transmitter + 1 Plug-in Receiver

Your Home and Business Security Support Made for You In the past almost two decades, we are doing all we can to make the best possible quality security products. Every sold unit was strictly tested by our professional engineer team to make sure it can work perfectly. -------------------------------------------------------- Reliable After-Sales All our products enjoy One Year Maintenance & Lifetime Friendly Service. We will never let you down! In the past almost two decades, we are doing all we can to make the best possible quality security products. Every sold unit was strictly tested by our professional engineer team to make sure it can work perfectly. Looking for a door chimes when door opens for business? Want to be notified if toddlers were getting out of bed when they shouldn't? Image a night entry alert chime which can alert you to the insecure door opening, and put off burglars from going any further. No more searching because now you have made it here, our wireless door chime can meet all your needs above! From simply "Ding-Dong" to "Merry Christmas", from "Hello Welcome" to "Thank You, Goodbye", there are 58 lovely tones and melodies for you to choose from. Most doorbell chimes are using 23A or button battery which can last for like 6-8 month, our transmitter takes one AAA battery which allows it to work 1-2 years per battery, but keep tiny body at the same time. Comes with double side adhesive and screw mounting options, the sensor body can use 3M adhesive on its back, and also has screw holes so you could screw mount it. We don't want to make the chime with poor quality speaker like the cheaper ones do, so we upgrade it and offer you more long usage life and more comfortable sound. Don't forget to choose your favor tone. Mind the 1cm max distance between two parts. Here we go, you made it.