Hey guys, today we would like to share you a big smart home deal! ^-^ This is a Self-Powered Wirele Doorbell, and its waterproof level reaches IP65! so it can be installed outdoors, so you dont have to worry about the wind and rain anymore!Meanwhile, you hang it around your neck so that it can also be used as a bell pager. You can use it for the elderly and children at home. One-button calling can respond in time and protect your family timely, smart yet simple! It is time to purchase one set for your lovely home! ^-^ <Specification>* Support Bell call( 2+1 Kits= Two Bells+One Receiver)* No drilling required, easy installation* Power standard: UK, EU, US standard* Transmiion distance in Open space:About 350m, Indoor transmiion distance: 50m* Working Voltage: 110-250V* Optional music: 38 songs * Color: White * CE/FCC/RoHS Certified <About us> We are one of the biggest smart home factory in China, you can purchase our products with a lowest price, and all products are quality tested to ensure good quality! Various promotions will be launched from time to time, you can pay attention to it! If your order quantity is more than 10 pieces, we will offer you a