[ANTI-THEFT]-The alarm sound of this disc brake lock can be as high as 110dB, to protect your beloved motorcycle from potential thieves?? attention. When it is parked at home or outdoors, the sensitive motion vibration sensor will activate the alarm even if someone reaches out to touch your vehicle lightly, However, it will not give false alarms due to the influence of thunderstorms. [SOLID AND DURABLE]-The lock cylinder is made of stainless steel which is anti-rust, durable, and strong enough to protect your motorcycles, bikes, off-road vehicles, and scooters. etc. Besides, the is IP67 waterproof and dustproof, which means it is absolutely effective in bad weather [RECHARGEABLE & ENVIRONMENTAL FRIENDLY]-This disc brake lock with a built-in 200MAH rechargeable battery can be lasted for about 3 months after charging for 3 hours. When the battery power is lower than 10%, there are 3 beeps to remind the user to charge in time. Therefore, it avoids the hassle of replacing the battery and sa