Motorcycle Alarm Wheel LockMade in a waterproof stainless steel case, the inner silicone rubber gaskets on the edge of the alarm device effectively keep out the rain or splash. With its waterproof function, keep working on rainy days and never get rusty.Steps To Use: 1. Press the lock button to lock the disc brake, and you will hear the sound "beep". When the lock is vibrated, the lock will give off an alarm "beep beep beep" three times in case this is an accident. When vibrated again, Silver Knight will give off a continuous shrill alarm for 10-12 seconds. And it keeps alarmed with serial vibration. 2. Silver Knight will cost you 3-5 seconds to open the lock, if the key does not match, it will give off an alarm. Use the right key to open the lock, the alarm will stop at once.