The case headset hole is for iphone  headset or  same size headset

Need to flash the firmware from the below link  before using :

https://github.com/sharebrained/portapack-hackrf/releases

more information you can go to this web:

https://github.com/sharebrained/portapack-hackrf

https://www.youtube.com/results?search_query=PORTAPACK

According to source code: github.com/sharebrained/portapack-hackrf

Redesign this hardware and share it to the enthusiast.

Progress of work:

1. has completed the program validation prototype.

2. the latest 2017.5 month documents are based on improvements.

Hardware configuration:

1.TFT240*320 screen (model: ER-TFT024-3)

2. navigation switch (TSWB3NCB222)

3. audio output

4. microphone input

5.DC2.1 interface

6.4 layer gold plate

7.ROSH process (exported to Europe and America)

The latest version is updated with the latest documents in 2017.5 month

Add a PortaPack  to your HackRF One software-defined radio, and leave your laptop behind! The PortaPack  attaches to your HackRF and adds a touchscreen LCD, navigation controls, headphone jack, real-time clock, micro SD card slot,

Just add a USB battery, and you're ready to explore radio spectrum wherever you are. The PortaPack firmware runs on the fast ARM processors in your HackRF. No computer is necessary (except for reprogramming firmware).

SPECIFICATIONS

• 2.4 inch, 240 x 320 RGB LCD with resistive touch panel.
• Four-way arrow keys, rotary jog wheel, and select button.
• Coin battery for preserving settings and date/time.
• Micro SD card slot for data and code storage

Some features demonstrated in 2016 February 22 firmware video:

• SSB, AM, narrowband FM, wideband FM audio reception, with spectrum waterfall.
• Wideband (18MHz) spectrum analysis and waterfall.
• Monitoring of boat (AIS), automobile (TPMS), and utility meter transponders (ITRON ERT).
• HackRF mode runs HackRF firmware for use with host computer SDR software.
• PPM calibration for more accurate tuning.
• Sleep mode saves power by turning off just the display.

You may also find the Furrtek HAVOC firmware very interesting!

Some assembly is required. .

Your HackRF will continue to function with computer-based SDR software, when you put the PortaPack into "HackRF Mode".

PortaPack is compatible only with the HackRF One. It is not compatible with the earlier HackRF Jawbreaker design. If you have an RF shield installed on your HackRF, the PortaPack should fit just fine. Compatibility with the HackRF Blue is experimental. One Blue owner has reported good results with minor mechanical interference between the PortaPack audio capacitors and the baseband header. If your HackRF Blue does not have a baseband header installed, you should have no mechanical problems.

PortaPack  requires an external battery. Any USB-connected battery should work, though they vary widely in quality and poorly-designed batteries may inject voltage regulator noise into the radio.

The PortaPack and HackRF One will not replace your handheld ham radio receiver. Receive sensitivity varies from band to band, but will not perform as well as a true ham radio receive