Case study

Razer Nari Battery Level: recovering a USB battery-voltage exchange

Razer Nari Battery Level implements a USB HID exchange to read the headset's reported battery voltage through its dongle. The author captured SET_REPORT and GET_REPORT traffic and infers that two response bytes encode battery voltage in millivolts. A C program using libusb sends the requests and decodes those bytes.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 2
Last commit: 2022-11-12
Language: C

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A connected Razer Nari USB dongle, libusb and GCC are required.
Prerequisites: The documented run command uses elevated privileges.
License: No licence file in the repository.

Cite

BibTeX

@misc{razer-nari-battery-level-case,
  title = {{Razer Nari Battery Level: recovering a USB battery-voltage exchange}},
  howpublished = {\url{https://github.com/Modzeleczek/RazerNariBatteryLevel}},
  url = {https://github.com/Modzeleczek/RazerNariBatteryLevel},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/razer-nari-battery-level-case/}}
}

Plain text

Razer Nari Battery Level: recovering a USB battery-voltage exchange. https://github.com/Modzeleczek/RazerNariBatteryLevel (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/razer-nari-battery-level-case/

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Primary sources

README.md GitHub · Modzeleczek/RazerNariBatteryLevel · Revision 0540d42