Check the listing for details. DELUX M618DB Vertical Ergonomic Wireless 3 stage DPI Adjustable RGB Light Mouse. Color: Black, Condition: New. Listed at 18.99 USD. DELUX Mouse button functions[3 Adjustable DPI]1000-1200(default)-1600, 3 Gear DPI which would be easily shift according to your daily working requirementUltralight mouseReduce muscle strain both in weight and gesture 57°degree angle unique design Reduce muscle fatigue more effectivelyRGB warm light on the top of mouseOutstanding Colorful and fashion 2.4Ghz wireless[Plug and Play, Stable 2.4G Wireless]2.4G RF wireless connection with USB Nano Receiver, with 10m/30ft efficient distance, just plug and play About this item[DELUX Ergo Vertical Series Mouse] It is important to equip with the correct size vertical mouse, which let you easily get used to the use of vertical mouse, and more help dramatically comfort hands muscle. Every people have different hand size and there is no one size fitting all. Do not worry, you could find your correct size vertical mouse with DELUX Ergo Vertical Series, even for left handed person.Just find your correct one according to your Palm size.[New Ergo Holding Gesture-57°] Just hold the DELUX vertical mouse with scientific angle-57 degree, rest your hand in mouse and keep your forearm muscel under natural position. Compared with tradition-shaped mouse, reduce arm discomfort and hand stiffness.[Plug and Play, Stable 2.4G Wireless] 2.4G RF wireless connection with USB Nano Receiver, with 10m/30ft efficient distance, just plug and play (please note that due to simple design, the USB Nano receiver stored in the battery compartment, please find the USB receiver in the battery compartment )[3 Adjustable DPI]: 1000-1200(default)-1600, 3 Gear DPI which would be easily shift according to your daily working requirement by the DPI button behind the scroll wheel. And with sensitive optical engine, providing smooth and precise tracking on a wide range of surfaces[DELUX Ergo Vertical Series Mouse][All DELUX products include 12 months warranty and free lifetime technical support] [Wide Compatibility]: Compatible with Windows 7, 8, 10 operating system. Fits for different devices, Laptop, PC Computer, Notebook, Macbook(limited supports to Mac, the side button are not available for Mac) (Compared with traditional mouse, with unique ergonomic vertical design, it may take a few days to get used to using it) SpecificationModel: M618C/M618DBDPI: 800-1200 (Default) -1600Dimension: 4.52 ×3.18×2.96 inches/115* 80.7 * 75.2 mmWeight: 95g/3.35ozNumber of keys: 6Color: Black/WhiteConnection: M618C - 2.4G RF Wireless with USB ReceiverM618DB - USB Receiver and bluetoothPolling Rate: 125HzDevice Compatibility: PC, Laptop, Computer, DesktopSystem Compatibility: Windows 7/8/10 Package included1 * M618 Wireless Mouse1 * USB Receiver (find it in the mouses bottom)1* USB C Cable for charger