Wireless Intercom BeltPack
JK Audio Outerloop Front

In the Loop, Out of Bounds.

Outerloop™ functions as a wireless link to your intercom system. This universal belt pack provides connections for your existing 4-pin or 5-pin intercom headset, routing audio through your mobile device over a Bluetooth wireless connection. Use your cell phone to call into your intercom phone bridge or station phone coupler for a global wireless link. In Phone mode, Outerloop pairs to your cell phone, notepad, or computer just like any other Bluetooth headset. In Headset mode, you can pair to another Outerloop or to a standard Bluetooth headset, providing a short range secure wireless point-to-point intercom.

Learn More Details Specs

Product Details

Features IL OL
HD Voice Compatible (7 kHz Wide-Band Speech)
Bluetooth Wireless Technology
Connects to Bluetooth Headsets, Phones, & Notebooks
2.4 GHz Encrypted Digital Wireless
3-pin XLR Male and Female Intercom Jacks
Uses Standard Intercom Headsets
4-pin and 5-pin Male or Female Headset Jacks
Send and Receive Volume Controls
PTT Button
Intercom Powered with 9 Volt Battery Backup
> 10 hours On One 9 Volt Battery
Made in America
Approved for Sale in Europe and Australia


Adapting to the mixed-up intercom world, model OTL-F features both 4-pin and 5-pin Female XLR headset jacks, while model OTL-M features both 4-pin and 5-pin Male XLR headset jacks. Easy-to-use send and receive level controls, a push-on, push-off Talk button, as well as a recessed sidetone level control. All the comforts of a standard belt pack whether you are around the corner or around the world.

Increased Range

While Outerloop™ will work with any Bluetooth enabled headset, most headsets were designed to work a short distance from the phone. JK Audio Interloop and BlueSet offer increased range and performance making it the perfect match.

JK Audio Outerloop-F Back
JK Audio Outerloop-M Back


Model Outerloop-F
Headset 4-pin Female XLR, 5-pin Female XLR
Model Outerloop-M
Headset 4-pin Male XLR, 5-pin Male XLR
Headset Microphone
Impedance 50-2000 ohms
Headset Earpiece
Load Impedance 50-600 ohms
Power >50 mW into 150 ohms
Bluetooth Wireless Technology
Standard Bluetooth 3.0
Profile Hands Free (HF)
Distance 66 ft (20 m)
Frequency Response Hands-Free (HF): 300 Hz– 3.4 kHz
HF (HD Voice): 50 Hz– 7 kHz
Power 9 VDC Battery
Size 4.7” x 3.75” x 1.65” (12 x 9.5 x 4.2 cm)
Weight 10 oz (275 g)
*HD Voice: While standard phone calls have a narrow bandwidth of 300 Hz to 3.4 kHz, HD Voice calls offer 50 Hz to 7 kHz bandwidth. The additional 1.5 octaves on the low end gives voice a more natural sound, while the additional upper octave dramatically improves speech clarity and intelligibility.

*Wireless HD Calls: To take advantage of this extended bandwidth, both phones on the call must support HD Voice, and both phones must be on the same carrier, in coverage areas that support HD Voice.