The ZYG-806 Dual-Mode Wireless Keyboard and Mouse Set is a multi-device retro punk-style setup that connects using either a 2.4G USB receiver or via Bluetooth.Setup & Connection InstructionsOption 1: Using the 2.4G USB Wireless ReceiverLocate the receiver: Pull out the tiny 2.4G USB dongle typically stored underneath the mouse.Plug it in: Insert the receiver into an open USB port on your laptop or computer.Turn on the mouse: Toggle the power switch at the bottom of the mouse to ON.Turn on the keyboard: Move its power switch to ON, then press the dedicated 2.4G key once to activate the channel. The upper-right indicator light will briefly flash red to confirm the connection.