Tripp Lite Wireless USB Proximity Lock Model SEC4002RF

Accessory Type: Wireless USB Proximity Lock Specifications: Dimension: 4" x 1.5" x 0.5" (W x D x H) Weight: 0.06 lbs. Color: Black and silver Special Features Batteries Required: yes (included CR2032 battery) USB Powered: yes (with included software) USB 2.0 Compatible: yes USB 1.1 Compatible: yes System Requirements Windows 98SE/2000/ME/XP CD-ROM drive Available USB port Features: Secure notebook information and data while you're away with this convenient security device Secure your information while your notebook is unattended Automatically shuts down your notebook once you're 10 feet away Automatically resumes normal operation when you're back to within 10 feet Powered by an included industry standard CR2032 battery Lightweight,