Get A Quick & Easy Doorbell & Security Solution For Your Home Or Business -Starting Today! CSD Premium Wireless Doorbell Set - The Superior Choice In Every Way Forget everything you knew about doorbells and installations; this CSD electronic doorbell set is 100% wireless, easy to install, and made to last! 1. 2 electronic chimes + 1 button devices 2. Quick & simple installation 3. 1000ft / 300m maximum effective range 4. Blue LED indicator 5. High-quality speakers with 5 levels adjustable volume 6. 38+ different ring & chime tones 7. IP44 weatherproof & dustproof casing for outdoor use 8. Button working temperature: -10f to 150f Designed For Maximum Utility & Low Power Consumption The wireless doorbell set comes with 1 electronic button transmitters that require no power, so you can install it anywhere you need. The 2 chime units requires to be plugged in to a power outlet, but is designed to consume as little power as possible - so little, in fact, you'll not even notice it on your power bill. (Maximum power 2W, standby power: 0.5W) Plus, the doorbell set wireless transmitter and receiver devices can be used for dozens of other purposes, both at home and at the office! Increased Range & Long Operating Distance By using state-of-the-art wireless transmission technology, this wireless doorbell set achieves increased signal penetration and effective range - up to 1000 feet! Great For Homes, Offices, Commercial Spaces, Villas & More! Thanks to its durable weatherproof casing and long operating range, this wireless doorbell devices is perfect for almost any space, from homes, to apartment complexes, to commercial spaces and office buildings. Loud & Clear Customizable Chimes The wireless doorbell's receiver module is equipped with powerful, high audio quality speakers-and also with 5 levels of adjustable sound volume, and more than 52 ringtones to choose from! With CSD's Seal Of Excellence! Whether you have a question you want us to answer or you’re looking for ideas on how to use your new wireless doorbell device, CSD is always by your side, and we will do our best to keep you happy!