NineLeaf Wireless Magnetic Door and Window Alarm, Bluetooth Home Security Burglar Alert with App Control, Vibration Alarm Sensors with Red Light Flash with 4 Working Model, Pack of 2 - NLD-AMA001-SF18S-2PC

• [APP control Multi-function Alarm] The Bluetooth alarm has 4 alarm modes. Alarm, Doorbell, Closing reminder and Vibration alarm mode. Don’t need a remote anymore, you can control it by your phone. Up to 4 devices can be added to one mobile phone. [Super loud volume and flashing Red light Alarm] When you set the doorbell mode, when someone opens the door, it will make a ding-dong sound and flashing Red light Alarm. When you set the Alarm, Closing reminder or vibrate alarm mode, when the alarm is triggered, it will send out a 180dB super loud alarm and red light flashing to remind you. [Adjustable sensitivity] The alarm has Magnetic + Triaxial Accelerometer Sensor, 7 stages(0-6) sensitivity adjustable. when you open Vibration alarm mode, lockpicking will trigger the alarm ahead to save the door. [TimingArm/Disarm Adjustable] You can set multiple groups of timing to open or off the Alarm. This allows the alarm to turn on automatically when you need it. It can save 100 alarm records, which can be viewed through the mobile APP, which can facilitate you to view video surveillance. [Rechargeable lithium battery, Easy to install] Ultra-low power consumption, charging for 2 hours can stand by for 4-6 months. There are stickers on the back of the alarm, you can stick the alarm on the door, window or anywhere you need the alarm function.