Microsoft HoloLens 2 Device

Microsoft HoloLens 2 is an untethered holographic computer. It refines the holographic computing journey started by HoloLens (1st gen) to provide a more comfortable and immersive experience paired with more options for collaborating in mixed reality. A user account is required to use HoloLens 2.

HoloLens components

• Visor. Contains the HoloLens sensors and displays. You can rotate the visor up while wearing the HoloLens.
• Headband. To put on the HoloLens, use the adjustment wheel to expand the headband. With the HoloLens in place, tighten the adjustment wheel by turning to the right, until the headband is comfortable.
• Brightness buttons. When wearing the HoloLens, the brightness buttons are on the left side of the visor near your temple.
• Volume buttons. When wearing the HoloLens, the volume buttons are on the right side of the visor near your temple.
• Power button. When wearing the HoloLens, the power button is located on the right side of the rear outer cover.
• USB-C port. When wearing the HoloLens, the USB-C port is located on the right side of the rear outer cover below the Power button.

Power Supply details

The power supply and the USB cable that come with the device are the best supported mechanism for charging. The power supply is an 18W charger. Its supplies 9V at 2A.

Charging rate and speed may vary depending on the environment in which the device is running.

In order to maintain/advance Internal Battery Charge Percentage while the device is on, it must be connected minimum to a 15W charger.

Device specifications

Display

• Optics : See-through holographic lenses (waveguides)
• Holographic resolution : 2k 3:2 light engines
• Holographic density : >2.5k radiants (light points per radian)
• Eye-based rendering : Display optimization for 3D eye position

Sensors

• Head tracking : 4 visible light cameras
• Eye tracking : 2 Infrared (IR) cameras
• Depth : 1-MP Time-of-Flight depth sensor
• Inertial measurement unit (IMU) : Accelerometer, gyroscope, magnetometer
• Camera : 8-MP stills, 1080p30 video

Audio and Speech

• Microphone array : 5 channels
• Speakers : Built-in speakers

Compute and connectivity

• Battery Life : 2-3 hours of active use. Up to two weeks of standby time.
• Battery technology : Lithium batteries
• Charging behavior : Fully functional when charging
• Cooling type : Passively cooled (no fans)
• Power draw : In order to maintain/advance Internal Battery Charge Percentage while the device is on, it must be connected minimum to a 15W charger.

Human understanding

• Hand tracking : Two-handed fully articulated model, direct manipulation
• Eye tracking : Real-time tracking
• Voice : Command and control on-device; Cortana natural language with internet connectivity