Introduction: 1.Used For Motorbike， Motorcycle， bike， Electromobile， scooter， etc.. 2.Fashionable Design 3.Safety and Convenient 4.Materials: zinc alloys 5.Internal use of full sealed waterproof structure. 6.Resistant corrosion， Shake proof， resistant bad weather， resistant physical destroy. 7.With an in-built alarm， Automatic alarm reset. 8.Battery: 6 pcs button AG13 or LR44 (NO Included) 9.Shake， shock， move or vibrate sensor; Alarm working when touched or tampered with in any way thus alerting you to unwanted attention. 10.Easy to use， push-down locking Package included: 1 pc Motorcycle alarm disc brake lock. 2 pcs brass security key This Motorcycle Alarm Lock Model is a new concept in lock systems which will deter any attempted theft or break-in whilst alerting you if in close proximity. A great product that spins an edge on the old lock systems which can be used for motorbikes， bicycles etc.. Operation: 1. Lock Operation Press the lock core， it will be locked and you will hear the sound "Du"， which means it is coming into the alarming station after 15 seconds. When the lock body is vibrated， it needs 5 seconds to vibrate again then give an alarm. After that it will alarm with every vibrated. Alarm finished in for 35 seconds not to have vibrated， it will return to original alertness. If you use key to slip the butterfly， it will stop alarming. 2. Battery ReplacementWhen you hear the sound"DU DU DU"， that means the battery runs out， the battery are needed replaced. It is very easy to replace the battery. Firstly， spin out the screws at the bottom of the butterfly lock， then take away the top cover. After that， you can take out the battery and put the new battery into it and cover it. But you should pay attention to the anode and the cathode of the battery.