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Pick up this new handheld road tool to get audio in and out of analog phone lines, PBX systems, even cell phones. Perfect for Remote Broadcasts, IFB feeds, or interviews over any phone connection.

Wireless Phones and Notebooks: Simply plug ComPack into the 3.5 mm headset jack of your wireless phone or notebook computer. Your device will recognize ComPack as a headset which will disable the internal mic and speaker.

PBX Systems: Unplug the handset from any analog or digital PBX phone and plug the coily cord into ComPack. You can now send and receive audio through the PBX telephone set.

Analog Phones: Plug ComPack into an RJ-11 jack, go off-hook and dial, or answer an incoming call.

ComPack also functions as a simple telecom interface for your beltpack intercom system. This no-frills feature allows you to connect the 3 pin male XLR to your beltpack intercom group. This provides a full duplex, always-on connection to any telephone network.

The ComPack Wireless Phone / Notebook interface was designed to take advantage of the increasing number of wireless phones and notebooks that accept third party headsets and earpiece headsets. While some wireless phones have the 3.5 mm jack directly on the phone, others require a headset adapter which converts their proprietary connector into this 3.5 mm jack.

Additional information

Weight 0.6804 kg
Product can be split into multiple boxes




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Female XLR, 1k ohm, -10 mV RMS (-35 dBm nom) mic, +5 dBm line

3.5 mm line input, 20k ohms, -10 dBm RMS

Male XLR

Line Output: 600 ohms balanced phone mix output.

Intercom mode: Pin 3 bidirectional unbalanced.

Headphone: ¼" stereo, 8 ohms, 500 mW

Phone Line RJ11C

Isolation 1500 VAC

Ringer LED 0.9B REN

Keypad DTMF

PBX Handset interface simulates electret, dynamic, and carbon handset microphone types.

Wireless Phone / Notebook Headset Interface:

1 meter cable with 4 conductor 3.5 mm plug

8" x 3" x 2.2" (20.3 x 7.6 x 5.6 cm)

1.5 pounds


XLR input (mic/line switch)
3.5 mm line input
¼" headphone jack
4 conductor 3.5 mm headset interface
Works with conventional phone lines
Works with analog and digital PBX or ISDN phones
XLR phone mix output switches to intercom link
Transmit clip LED
Battery test LED
Keypad lockout switch
HD Voice Compatible
Runs 20 hours on one 9 volt battery
Made in USA




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STUDIO Telephone Interfaces JK Audio ComPack