5Chapter 3. Preparation before initial setupPrepare the following devices before the initial setup of the Lenovo Explorer headset:• Compatible computerTurn on the computer.For detailed information about software and hardware requirements for your computer, goto http://www.lenovo.com/support/lenovo_explorer.• Lenovo Explorer headsetRemove the protective film from each of the viewer lenses.• Controllers (optional)Connect either of the following controllers to your computer:- Motion controllers (recommended) for motion tracking and menu controlFor detailed information about the motion controllers, refer to “Chapter 6. Enhancingthe Lenovo Explorer”.- Windows-compatible controller (such as XBOX ONE ® or XBOX 360 ® controller) formenu control• Keyboard and mouse (optional)Connect a keyboard and a mouse to your computer to help input data.• 3.5-mm (0.14-inch) earphones, headphones, or audio headset (optional)To listen to the sound from the computer, connect earphones, headphones, or an audioheadset to the 3.5-mm (0.14-inch) headphone connector on the Lenovo Explorerheadset.To communicate with the Cortana ® personal assistant, use a Cortana-certified audioheadset.