Features: --This package includes one door handle alarm, with dimensions of 6.5x3.7x1.5cm/2.56x1.46x0.59 inches, made of high-quality electronic component materials such as ABS. --Our door handle alarm has adjustable off/alarm/ringtone settings, which are user-friendly and have a variety of functions to meet your usage needs. --This type of door alarm has an ultra-high sound of 115 decibels, which can be heard, helping to wake up/remind homeowners or tenants, help prevent intruders, and may notify neighbors (at an altitude of 600 feet (185 meters)). --This door handle alarm is very suitable for families and travel, suitable for door handles, bedroom doors, houses and apartments, hotel rooms and dormitories. --Our alarm is battery-powered (requires 3 AAA batteries, not included) and does not require wiring. Simply hang the alarm on the inside of the door handle. Material: ABS, other electronic components Size: 6.5x3.7x1.5cm/2.56x1.46x0.59inch Color: White Function: Ringtones: When you're at home, the ringtone mode is great for alerting you when kids or guests come and go; Alarm: Alarm mode has a 30-second activation delay to prevent immediate false triggering, but will sound immediately when the door handle is touched any time after the initial 30-second delay. Package Included: 1PC x Door Handle Alarm (Excluding batteries) Note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item. --This package includes one door handle alarm, with dimensions of 6.5x3.7x1.5cm/2.56x1.46x0.59 inches, made of high-quality electronic component materials such as ABS. --Our door handle alarm has adjustable off/alarm/ringtone settings, which are user-friendly and have a variety of functions to meet your usage needs. --Our door handle alarm has adjustable off/alarm/ringtone settings, which are user-friendly and have a variety of functions to meet your usage needs. --This door handle alarm is very suitable for families and travel, suitable for door handles, bedroom doors, houses and apartments, hotel rooms and dormitories. --Our alarm is battery-powered (requires 3 AAA batteries, not included) and does not require wiring. Simply hang the alarm on the inside of the door handle.