MAGNETIC SENSOR - Door alarm will be triggered immediately once you separate two parts, suitable for windows and doors when opening, the alarm host makes an audible alert once the alarm host and magnet part was separated LOUD 110dB - Wireless door alarm with 110 dB loud alarm sound can help to deter the intruder, wake or alert you if at home and possibly alert neighbors, also can use it as door open chime or pool alarm, helps notify you if visitors/children/dementia patients/pets or others are coming/going, and emergency alert system for the older/patients 4 MODES & 49 ft WIRELESS RANGE - Door alarms with remote, wireless control range up to 49ft. Arm/Disarm/Panic/Doorbell 4 modes controlled by the remote. Great for home, business, apartment, hotel rooms, garage, RV, traveling, pool safety dementia patients and kids safety home security DIY PAIRING - Remote can control up to 50 alarms at the same time, one alarm can pair with 8 remotes. control each alarm. DIY home security alarm for windows and doors, more alarms and remotes available for pairing EASY INSTALLATION & LOW CONSUMPTION - Simple peel and stick installation. No wiring needed, no screws needed. Battery can last longer, the window door alarm kit with low consumption