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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. It 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


HoloLens has see-through holographic lenses


OpticsSee-through holographic lenses (waveguides)
Holographic resolution2 HD 16:9 light engines producing 2.3M total light points
Holographic density>2.5k radiants (light points per radian)
Eye-based renderingAutomatic pupillary distance calibration


HoloLens has sensors for understanding its environment and user actions

  • 1 inertial measurement unit (IMU)
  • 4 environment understanding cameras
  • 1 depth camera
  • 1 2MP photo / HD video camera
  • Mixed reality capture
  • 4 microphones
  • 1 ambient light sensor

Input, output, and connectivity

  • Built-in speakers
  • Audio 3.5mm jack
  • Volume up/down
  • Brightness up/down
  • Power button
  • Battery status LEDs
  • Wi-Fi 802.11ac
  • Micro USB 2.0
  • Bluetooth 4.1 LE


  • Battery Life
  • 2-3 hours of active use
  • Up to 2 weeks of standby time
  • Fully functional when charging
  • Passively cooled (no fans)


The motherboard for Microsoft HoloLens

  • Intel 32-bit architecture with TPM 2.0 support
  • Custom-built Microsoft Holographic Processing Unit (HPU 1.0)


  • 64 GB Flash
  • 2 GB RAM



SizingSingle size with adjustable band. Fits over glasses
Weight579 grams

Device capabilities

Using the following to understand user actions:

  • Gaze tracking
  • Gesture input
  • Voice support

Using the following to understand the environment:

  • Spatial sound

Pre-installed software

  • Windows 10
  • Windows Store
  • Holograms
  • Microsoft Edge
  • Photos
  • Settings
  • Windows Feedback
  • Calibration
  • Learn Gestures

Device certifications


HoloLens has been tested and found to conform to the basic impact protection requirements of ANSI Z87.1, CSA Z94.3 and EN 166.

Care and cleaning

Handle your HoloLens carefully. To lift, carry, and adjust your HoloLens, use the device arms—not the overhead strap. To keep the visor free of dust and fingerprints and avoid touching it. Repeated cleaning could damage the visor, so try to keep your device clean.

Don't use any cleaners or solvents on your HoloLens, and don't submerge it in water or apply water directly to it.

To clean the visor, remove any dust using a camel or goat hair lens brush or a bulb-style lens blower. Lightly moisten the microfiber cloth with a small amount of distilled water, then use it to wipe the visor gently in a circular motion.

To clean the rest of the device, including the headband and device arms, use a lint-free cloth moistened with mild soap and water. Let your HoloLens dry completely before using it again.

Image that shows how to clean the visor

Finding the Serial number

The serial number for HoloLens (1st gen) devices is printed underneath the right lens.

  1. Hold the device in front of you as if you were going to wear it upon your head. With the device facing forward and upright.
  2. With the lens still facing forward, flip the deivce upside down so you see the underside.
  3. The right lens will now be on the left, printed under the lens on the band is the serial number.

The serial number can also be found via a connected PC:

  1. Plug in the device
  2. Navigate to This PC in file explorer
  3. Right Click and select Properties of the HoloLens device
  4. This will display the series number of the device. Like this screenshot below.

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