Door Chime When Door Opens, Doorbell Alarm for Home, Office, Store 600FT Long Range Open Door Bell with 58 Chimes & 5 Volume Levels. Ideal Entry Alert for Kids, Toddler & Dementia Safety

A GREAT GIFT for homeowners, people who live alone, the hearing impaired, business partners, or anywhere you need a safeguard.
Easy Installation: The door chime and door sensor are already paired. The first step is to stick the sensor on the door/window (the distance between the two parts should not exceed 0.4 inches), and the second step is to plug the chime receiver into the socket. Installation is completed!
Upgraded Battery: Using household alkaline batteries, designed with an ultra-low power design, the door sensor chime allows the battery to last up to 7200 times. 600ft Wireless Range and
Expandable Pairing: All the brand's door entry chime and sensor alarms can be paired with each other, and one receiver/sensor can pair up to 58 sensors/receivers. With a wireless range of 600ft, it meets the needs of long-distance and multiple pairings for home, businesses, and stores. 58 Optional Ringtones and 5
Volume Levels: 58 rich and varied ringtones, there is always one that meets your expectations! 5 volume levels from 0-110DB, you can choose silence or loud sound, to meet your needs in daily life! The LED indicator is suitable for the elderly and those with hearing impairments. Our brand has been producing and selling security products since 1993, with absolute experience and skills. Please choose us!