Microsoft Surface Wireless Bluetooth Mouse

Connectivity: Bluetooth 4.0 / 4.1 with Nordic nRF51822 (Bluetooth Low Energy) platform. Sensor & Tracking: Uses Microsoft BlueTrack Technology. Resolution 1,000 DPI with a tracking speed up to 30 inches/second. Battery: Uses 2 AAA alkaline batteries (included), with a life of up to 12 months. Design & Weight: Metal scroll wheel. Weight of 90.9 g (with batteries). Dimensions 115.16 x 64.16 x 33.76 mm. Compatibility: Windows 11/10/8.1, macOS, Android 4.4.2-5.0, and devices supporting Bluetooth 4.0 or higher.