Suitable for Bikes, Electric Bike, Motorcycles, Scooter, Car, Doors and ... Vibration alarm, 7 level sensitivity adjustable IP55 waterproof, suitable for outdoor use Vehicle search function, easy to find your vehicle by 6 kinds of bells ------ 3 adjustable volume, up to 113dB Wireless control by remote. Easy to install by pasting with double-sided sticker or tying it with strap An alarm need 3 AAA alkaline batteries ( included ) standby for 6-10 months A remote need a 12V/27A alkaline battery ( included ) standby for over 1 year Wireless range: 10-20 meters Working environment temperature: -20~60 degree, Working environment: Less than 80% Storage temperature: -30~70 degree Type Of Accessory: Special Parts Of Anti-Theft Device Feature: Security Alert Feature1: Electric Bicycle Security Alarm Connection Type: wireless Model Number: -SF22R Arming Type: FR Remote-controller Alarm Type: The Alarm color:Black Material:ABS Package Contents: 1 x Alarm(The color and style of the buckle are random, and the specified color style cannot be ) 1 x Remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.