Please note: This listing is for the mouse only. The original USB receiver/dongle is NOT included.Connection Method:Bluetooth Only: This mouse operates strictly via Bluetooth connection.It can easily pair directly with your Bluetooth-enabled PC, Mac, laptop, or tablet.Important: It does not include the USB wireless receiver, so your device must have built-in Bluetooth capabilities to connect.Key Features:Ergonomic Design: Vertical style reduces wrist strain and forearm twisting.LED Screen: Displays active connection modes and settings.Knob Control & Buttons: Includes adjustable DPI settings and a customizable control knob.Rechargeable Battery: Built-in battery eliminates the need for disposable cells.