Function: 1. Anti-theft device has a very good anti-theft effect. Vibration alarm has been activated, suitable for Xiaomi M365 electric scooter, bicycle, motorcycle, door or window, etc. 2. The alarm is sensitive with 7-level soft touch which can be adjusted and can be easily set as needed. Wireless remote control operation, remote control range is up to 10-20m. 3. 113dB alarm can effectively deter thieves. It can effectively scare thieves and also can serve as an SOS alarm. 4. Easy to install, PC material, more durable and durable waterproof ring design. The waterproof class is IP55 and can be used outdoors. The motorcycle anti-theft alarm can be installed by gluing a double-sided tape or a mounting tape. 5. Excellent and compact design, easy installation, three kinds of bells can be operated by remote control, easy to find vehicle location. Specification: Article type: Anti-theft alarm Weight: Ok 128g,4.5 ounce Black color Material: PC Function: sauce 7-level adjustable sensitivity alarm 113db variable sound; p> Waterproof class: IP55 Sensor: three-axis acceleration sensor Detector: Vibration Remote control distance: about 10.20 m/32.8,65.6 feet Alarm power supply: 3 AAA batteries (built-in battery) Remote control power: 12V/27A alkaline battery (built-in battery) Wireless range: approx.10~20m/32.8~65.6ft operation: -20.60 Operating environment: less than 80% Storage temperature: -30.70 Features: Arming and disarming Touch sensitivity adjustment Change the sound of the bell Search vehicle SOS function Low battery indicator How to use: Host uses 3-AAA batteries to power, daily use for 1-3 months, continuous standby for about 6 months. 2. The pilot uses 12V/27A alkaline battery for 1-year daily use (pilot five times a day). Package list:1 x anti-theft alarm2 x bar;1 x remote control (built-in battery)2 x double-sided tape1 x instruction in English1 x triangular element (used when replacing the battery)1 x screwdriver Note: 1. When using the car, pay attention to the method of fixing the host, choose paste or bind. 2. Hidden host installation will reduce alarm sound. 3. It is better not to install it in enclosed space with metal material around, metal has a large wireless signal shielding effect, which affects the distance of remote control.