Features1Set Contents: This electric bike throttle handle alarm set contains 2 throttle handle, 2 throttle handle key, 1 alarm and 2 alarm remote control. 2Unique Conversion Cable: Electric bike throttle handle alarm set is with a unique conversion line, easy connection. Simple installation, universal voltage. 3Anti Theft: This bike throttle handle alarm set is aimed to anti theft and alarm is suitable for electric modified bike, electromobile and so on. 4Ringing Sound: Electric bike safety alarm can make ringing noises to get people's attention. Can also be used for door and window alarm vibration sensor. 5Simple Installation: The alarm is installed by attaching a double sided sticker or using a strap. Just directly connected to the controller line can be started.SpecificationItem Type: Electric Bike Throttle Handle Alarm KitMaterial: Rubber, ABS, Metal, PlasticAlarm Remote Control Battery Type: Lithium Battery (Shipped With Built In Battery)Single Remote Control Battery Capacity: 500mAhPackage List2 x ThrottleHandle2 x ThrottleHandle Key1 x Alarm2 x Alarm Remote Control