Doorbell Waterproof Wireless Doorbell Easy Install at 1,300ft Long Ran Loud Enough with 55 Chimes 5 Volume Levels LED Flash Door Bell for Home Classroom Apartment,2 Push Buttons 3 Receivers,White

【1300ft Long Ran】This high frequency electronic technology wireless remote control doorbell uses a wireless signal solution with strong anti-interference capability. In the open environment, the sensing distance can reach 1300 feet. Widely used in homes, apartments, schools, villas, offices, warehouses, hotels, factories, hospitals, etc. 【55 Smart tone】Perfect wireless doorbell kit with 55 different tones and 5 levels of adjustable volume from 0db to 110db. Easy to select and set your favorite tone; flashing light indicator is easy to notice including the hea impaired. Retains memory of your last set melody and volume after power failure; No need to reset to previous settings; Convenient and easy-to-use design gives you a better using experience. 【IP55 Waterproof】 Sleek modern design in classic white with IP55 dust and water protection; Battery life: 3 years. Operating temperature ran of -22 °F to 158 °F; withstand all kinds of harsh weather conditions, suitable for indoor and outdoor use.