• Bluetooth® Compatible• Microsoft-proprietary BlueTrack™ Technology• Dynamically adaptable to 8000 frames per second• 2 buttons and touch surface• 1 AA Alkaline battery (included)• Battery Life Up to 4 months• Length:2.40 inches (60.9 millimeters)• Width: 2.11 inches (53.6 millimeters)• Depth:
• Bluetooth® Compatible• Microsoft-proprietary BlueTrack™ Technology• Dynamically adaptable to 8000 frames per second• 2 buttons and touch surface• 1 AA Alkaline battery (included)• Battery Life Up to 4 months• Length:2.40 inches (60.9 millimeters)• Width: 2.11 inches (53.6 millimeters)• Depth: 0.87 inches (22.1 millimeters)• Weight: 2.29 ounces (65 grams)