Keyless, password, and remote control for locking and unlocking. Alarm activates when the lock is vibrated or removed. Alarm triggers if the cable is cut or battery cover is opened. Three incorrect code entries activate the alarm. Alarm sound reaches up to 110dB. Programmable 4-digit password with up to 256 possible combinations. Remote control enables lock, unlock, vehicle finder, and pairing functions with LED indication. Operated by 3 x AAA alkaline batteries (not included), with low battery indicator. IP55 rated for water resistance. One remote can control multiple locks or similar remote alarm systems simultaneously. One lock can be paired with up to 8 remotes. 3 x AAA batteries (not included) provide up to 3 months of operation. 1 x CR2032 battery for remote (not included), lasting over 3 years. Remote control range: up to 40 meters. Cable specifications: 80cm length (available in 40cm or 120cm options), 10mm diameter. Chain specifications: 80cm length (available in 40cm or 100cm options), 6mm diameter. Working temperature: -10°C to +60°C. Storage temperature: -20°C to +80°C. Dimensions: 92 x 55 x 34mm. Color: Black. Material: ABS. Package includes: 1 x Alarm lock, 1 x Remote control. Light reflection and display differences may cause slight color variation between the image and actual item. Measurement may vary by +/- 1-3cm.