Function: 1. Multi-functional bicycle alarm: The bicycle alarm has an excellent anti-theft function. Vibration alarm is very suitable for bicycles, motorbikes, electric bikes, electric scooters etc. You can also install a vibrating alarm on your door or window that will trigger an alarm when someone tries to open it. 2. Level 7 Adjustable Sensitivity: Control the sensitivity of the vibration sensor alarm by adjusting the level 7. This allows you to freely configure bicycle alarms. 3. 3 adjustable volume and IP55 waterproof: The motorcycle and bike anti-theft alarm has a loud alarm up to 113dB, which can effectively scare away potential thieves and attract people's attention. It also has a three-way volume control so you don't have to worry about the volume being too loud or not at all. Waterproof IP55, very suitable for outdoor use. 4. Wireless Remote Control: The wireless control of the bicycle security alarm is by remote control, and the powerful wireless range can reach 20m / 66ft. With the vehicle search function, you can easily find your vehicle in a parking lot. There are three types of bells to choose from (the arming mode is not available). 5. EASY INSTALLATION: The bicycle vibration alarm has adhesive and a double-sided bracket that can be installed by gluing or bonding. No screws or wiring required. 3.7x1. 6x0. 9 inches, exquisite and compact design, easy to hide and install. Specification: Item Type: Bicycle Alarm Material: ABS Host Size: Approx. 94 x 42 x 23 mm / 3.7 x 1.6 x 0.9 inch Black color Frequency: 433.92MHz Remote control distance: 20m/787.4in Alarm volume: 113 dB (distance: 30 cm / 11.8 in) Working temperature: -20 to 60 degrees Celsius; Storage temperature: -30 to 70 degrees Celsius; Host battery : 12v/27a 500mA alkaline lithium battery (built-in, standby for more than 1 year) Remote control battery: CR2025 150mA button battery (built-in) Package List: 1 x Alarm (with battery) 2 x remote control (battery included) 2 x tie wire 1 x double sided tape 1 x charging cable 1 x User Manual 1. You can pair up to 8 keyfobs, press the disarm key of the 1st keyfob, then long press the doorbell key. 2. When you hear the alarm tone, press the deployment key of the new remote, the alarm will beep, beep.