Brand new and unopened. 【Brand】 This is a Bluetooth mouse made by Microsoft. It's a reliable brand with guaranteed quality. 【Design】 The ergonomic design makes it comfortable for long hours of use. The shape fits your hand, pursuing ease of use. 【Compatible OS】 It supports Windows 10 and can be easily paired with your device via Bluetooth connection. - Brand: Microsoft - Type: Bluetooth Mouse - Design: Ergonomic Design - Compatible OS: Windows 10 - Connectivity: Bluetooth - Features: Basic device, connection brand Microsoft Connectivity Technology: Bluetooth Features: Ergonomic Design Movement Detection Technology: Optical Number of Buttons: 5 Manufacturer Reference: 222-00015 Batteries Included: Yes Color: Peach Wireless Range: 10m outdoors, up to 5m in a typical office environment Radio Frequency: 2.4GHz Thank you for viewing.