113Db Super Loud Wireless Motorcycle Bicycle Alarm Security Anti-Theft Alarm with Remote Control Waterproof Black -- Security Alarm Wireless Vibration Motion Sensor Waterproof with Remote Control for Bicycle Motorcycle With a loud siren sound of up to 113 decibels, this vibration induced burglar alarm can effectively deter thieves, providing extra security and peace of mind when your vehicle is parked indoors or outdoors. There are 7 levels adjustable sensitivity, from light touch to push or tap. Product Description: 1. Easy to install: attach the strap through the hole to your bike or stick the back of the siren with a double-sided sticker to your bike. 2. Search function: press the doorbell button to alarm and find your vehicle easily. 3.3 kinds of ringtones for selection: press the disarm button to enter disarm mode, press the "bell" button to select the song. 4. Up to 8 remote controls can be paired: first press the disarm button of the first remote control, then long press the doorbell button. After the alarm clock rings "Bi", press the on-hook button of the new remote control, and the alarm clock rings "Bi..Bi". Complete. 5. Suitable for bicycles, electric bicycles, motorcycles; vibration alarm, 7-level sensitivity can be adjusted 6. IP55 waterproof, suitable for outdoor use 7. Vehicle search function, you can easily find your vehicle with 3 kinds of ringtones 8. Wireless remote control, powerful wireless range up to 66 feet (approx. 20.1 meters). Product Specifications: 1. One alarm requires 3 AAA alkaline batteries (included) for standby 6-10 months 2. Remote control requires 12V/27A alkaline batteries (included) for backup for more than 1 year 3. Long-range wireless range: up to 66 feet (20 meters) 4. IP55 waterproof 5. Working environment temperature: -20 ~ 60 , working environment: 80%, storage temperature: -30 ~ 70 Packing list: Siren * 1 Remote control * 1