Wireless Door Open Chime Alert Door Entrance Entry Alarm for Business Home Store Office 1 Receiver & 1 Magnetic Window Sensor 52 Ringtones 4 Volume Level

PERFECT GIFT : DON'T WAIT, ADD TO CART NOW For YOUR FAMILY AND BUSINES. Wireless Door Magnet sensor open chime easily installed plugin and play How to change the ringtone Step 1:Press the " forward " / " backward " button on the receiver to choose your favorite melody. Step 2:Press and hold down the volume button ,until it makes a "Ding" sound and the receiver indicator flashes. Step 3:Separate the sensor quickly,it will makes a "Ding-Ding" sound and the receiver indicator flashes. Step 4:Separate the sensor again to confirm whether the current ringtone is the one you have set,if yes,the pairing is completed. How to pair more transmitters Step 1:Press and hold down the volume button on the receiver until it makes a "Ding" sound and the receiver indicator flashes. Step 2:Separate the sensor quickly,it will makes a "Ding-Ding" sound and the receiver indicator flashes. Step 3:Separate the sensor again to confirm whether the receiver can sound,if yes,the pairing is completed. If the door chimes can not work when you received it,please re-pair it. Features Modern & stylish design Easy installation 500+ feet operation range(open air) 4 levels of volume 52 Ringtone low power consumption Specification Working voltage of receiver:110-260V Battery in magnetic door sensor:2 3V Button Battery Package 1*Receivers 1*magnetic door sensors 2*Double sided tapes 6*3V CR2032 Button Battery NOTE The installation gap between 2 parts of the magnetic sensors should be less than 0.04 inch. After using for a period of time, if the door magnet does not respond, please replace the battery, Just search for CR2032 button battery on Amazon to purchase the door magnet battery.