Description Creative ergonomic vertical mouse 2.4g office wireless mouse wowpen vertical mouse wireless computer mouse The product is shipped based on the color or size of the main image of the product page. Type : 2.4Ghz Wireless Number of Rollers : 1 DPI : 1200 Package : Yes Number of Buttons : 5 Operation Mode : Opto-electronic Interface Type : USB Connection Mode with Computer : Wireless Color : Black Roller Direction : Up and down Wireless Frequency : 2.4GHz Whether Ergonomics Is Supported : Support Applicable Models : Notebook Computer Key Number : 5 Interface : USB Characteristics : Ergonomics Photoelectric Resolution : 1200dpi The Fastest Delivery Time : 1-3 Days Working Methods : Photoelectric Adjustable Resolution : The Third Gear and the following Type : Wireless Mouse