Color as shown Size: 101010 cm Weight: 100g ERGONOMIC DESIGN: A vertical ergonomic mouse can reduce damage to your computer. Palm joint and your wrist muscles for prolonged mouse use. WIDE COMPATIBILITYÉ :The digital vertical ergonomic optical mouse is compatible with Mac OS X, Linux and Windows of all versions. This mouse features a nano USB receiver that plugs into a laptop or computer USB port to establish a connection. OPTICAL MOTION DETECTION: This vertical ergonomic HUILINMEI mouse is equipped with a high-precision optical sensor and motion sensitivity. is adjustable and offers smooth, lag-free use for a smooth, precise glide on any surface. RECHARGEABLE BATTERY: This wireless laptop mouse uses an environmentally friendly polymer battery to prevent overcharging, extend battery life and can be used on the go. Can be used for 3 months on a single charge.