Tinksky Portable Bike Bicycle Motorcycle Moped Anti-theft Code Lock Security Alarm (Black) Color: mainly black. Shell material: durable hard plastic. You can not only attach the alarm to your various kinds of bikes, motorcycles, scooters and mopeds and protect them from being stolen, but also use the alarm on anything and everything that you can screw it to, such as garden lawn mowers, garden furniture, etc. If your bike is tampered with, the movement triggered alarm will emit a scarily loud 110dB sound to scare potential theives away. 3 sensitivity levels (High, Medium and Low) allow you to determine how much movement is needed to trigger the alarm. When triggered the alarm will sound 5 times and if it is triggered again within 5 seconds it will sound for 15 seconds continuously. Waterproof design allow you to attach the alarm permanently to your bike without worrying about having to remove it in bad weather. Powered by 1 * 6F22 9V battery (not included).