Colour: Black material: plastic Do you need a battery: Yes (9V battery: product does not contain a battery, you need to take another battery) Product accessories: 1 x vibration alarm and 1 x remote control and 2 x screw set Product size: 10 x 4 x 6.5cm Product weight: 84g Features: Tips: We serve you wholeheartedly, and the customer service online will answer any questions about your purchase. Specifications: 1. Security and anti-theft: wireless vibration alarm with infrared remote control, using microcomputer technology, high sensitivity, safe and reliable. 2. Waterproof and rainproof: After sealing processing, it has a good waterproof effect. 3. Simple operation: easy to install, directly stuck to the screw set of the frame, easy to disassemble, and more convenient to use. 4. Carry it with you: small and light, it can be put into a bag or stuck on the body when riding, so there is no need to worry about nowhere to put it. 5. Wide application: lock with functions, suitable motorcycles, electric vehicles, bicycles, etc. Package Included: 1 x Vibration Alarm 1 x Remote Controller 2 x Screw sets