Voltage Valet Cable Lock Alarm (2CA-Y) Four-foot retractable steel cable; 3-Dial Combination Lock - set your personal combination in seconds; Loud 110 dB Alarm With Two Setting Options. Secure your possessions to a stationary object and if the lock cable is cut the alarm sounds. As a second option, attach the lock cable to your possessions and if they are moved the alarm sounds. Flashing LED - warns potential thieves to stay away; Tamper Proof Battery Compartment Uses One 9 Volt Battery (Not Included); Complete Instructions Enclosed; Size: 5 1/2" x 2 1/2" Weight: 5 oz.