The mobiWAN accessory comes with every Trimble XR10 with HoloLens 2, providing high quality audio output in even the loudest environments. The device attaches to the rear suspension of the hard hat and provides Bluetooth audio via bone conduction, just behind your ears. With bone conduction, users can receive audio output from the Trimble XR10 with HoloLens 2 even if they are wearing noise-cancelling earmuffs or earplugs. In conjunction with the 5-microphone array on the front of the Trimble XR10 with HoloLens 2, the mobiWAN enables spoken word audio operations, such as remote assist calls, in ambient noise environments up to 115dB.