Logitech M170 Mouse Marketing Information from the Manufacturer Scroll wheel provides convenient and easy navigation Optical LED for smoother movement and hassle-free performance Product Type: Mouse Environmentally Friendly: Yes Product Color: Black Color Family: Black Environmental Compliance: Restriction of Hazardous Substances (RoHS) Country Of Origin: China Brand Name: Logitech Manufacturer: Logitech Product Model: M170 Product Name: M170 Mouse Device Supported: Computer Manufacturer Part Number: 910-004940 Manufacturer Website Address: http://www.logitech.com Weight (Approximate): 70.5 g Pointing Device Host Interface: USB Scroller Type: Scroll Wheel Total Number Of Buttons: 2 Ergonomic Fit: Symmetrical Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Radio Frequency Movement Detection: Optical