Features:● Outside full 360 degree rotation available.● Ultrasonic welded and waterproof.● Available for any car and car alarm system.● Single control.● Compatible with remote security lock / unlock outputs.● Suitable for 2, 4 doors vehicles, fit any cars except for vehicles with cable lock.● Can easily turn your manual door locks into automatic door locks, for added convenience and security.● All mounting hardware and wiring harnesses are included.● Remotes are not included.● Can connect to your car alarm system to protect your belongings.Specifications:● Housing Material: ABS● Working voltage: 12V● Working temperature: -20 - 70 deg.c● Longevity: 100000 times● Static torsion: 4kg● Flexible distance: 20mm Type: Car Alarm Security System Color: Black Material: Electronic Components,Plastic Voltage: 12V Package weight: 0.859 kg Product size (L x W x H): 14.500 x 6.000 x 3.000 cm / 5.709 x 2.362 x 1.181 inches Package size (L x W x H): 24.000 x 14.000 x 8.000 cm / 9.449 x 5.512 x 3.150 inches Package Contents: 1 x Main Unit Module, 1 x Car Central Door Lock System Master, 3 x Car Central Door Lock System Slave, 1 x Attachment Kit (Triple Lock), 4 x Metal Bracket, 4 x Metal Rod, 1 x Wiring Set (1.5m), 1 x English User Manual