A. It can be locked and unlocked without keys, passwords, and remotes. B. The alarm may be triggered when the lock vibrates or is removed. C. The alarm may be triggered when the cable is cut or the battery cover is removed. D. Entering the wrong password three times may trigger the alarm. E. The alarm sound can reach approximately 110 decibels. F. A 4 - digit password can be set, offering up to 256 password combinations. G. Locking, unlocking, finding the vehicle, and pairing operations can be carried out through the remote control, and there is an LED indicator. H. It is powered by 3 AAA alkaline batteries (batteries not included), and there is a low - battery reminder. I. It reaches around the IP55 waterproof level. J. One remote control can control multiple locks or similar remote - controlled alarms at the same time. K. One lock can be paired with up to 8 remote controls. L. The lock uses 3 AAA batteries (not included), and the battery life is about 3 months. M. The remote control uses 1 CR2032 battery, and the battery life is more than 3 years. N. The remote control distance is about 40 meters. O. Cable specifications: Length is about 80 cm (40 cm/120 cm are optional), and the diameter is about 10 mm. P. Chain specifications: Length is about 80 cm (40 cm/100 cm are optional), and the diameter is about 6 mm. Q. Operating temperature ranges from approximately -10°C to +60°C. R. Storage temperature ranges from approximately -20°C to +80°C. S. Dimensions: Approximately 92×55×34 mm. T. Color: Black. U. Material: ABS. V. Package contents: - 1 alarm - 1 remote control W. Only the above package contents are included, and other products are not included. X. Note: Due to light reflection and different monitors, the color of the item may vary slightly from the actual product. A measurement error of around ±1 - 3 cm is allowed.