Wireless Audio Interface
JK Audio BlueDriver-F3

Mic or Mixer output to your Bluetooth Device.

Pair to your Bluetooth enabled phone, headset, or speaker to route audio through your Bluetooth device. New to BlueDriver-F3, the 3.5 mm stereo output jack is now a headphone output jack, allowing you to monitor the return signal from your Bluetooth device over wired ear buds or headphones.

Learn More Details Specs

Product Details

Features D3 F3 M3
HD Voice Compatible (7 kHz Wide-Band Speech)
3-pin Female XLR Input
3-pin Male XLR Output
3.5 mm Input
3.5 mm Output
3.5mm Earpiece/Headphone Output
Trim Pot Adjusts Mic Level
Headset/Phone Switch
Mini USB Power Jack
>18 Hours on one 9-volt Alkaline Battery
>6 hours on Internal Li-Ion Battery
Made in America
Approved for Sale in Europe and Australia

Headset Mode vs. Phone Mode

A switch selects between connection to a Bluetooth headset or speaker, or to a phone.

Headset Connect

Pair BlueDriver-F3 to your Bluetooth headset or speaker. BlueDriver-F3 functions like a phone to send and receive audio from a Bluetooth wireless headset, or transmit audio to a Bluetooth wireless speaker.

Phone Connect

Pair BlueDriver-F3 to your phone to capture wireless Audio-for-Video, make a live call into the station, or bring caller audio into your live event or podcast.

Phone Mode

Wireless Audio for Smartphone Video


secure connection




no lip-sync delay

BlueDriver-F3 along with a professional video camera app, lets you record broadcast worthy interviews while placing the mic in the subjects hand for improved audio quality.

  1. While BlueDriver is off, set the Role Select Switch to <Phone>.
  2. Plug BlueDriver-F3 into the bottom of a dynamic microphone.
  3. Pair to a cell phone. Enable the Bluetooth-Mic input in the in-app settings and start recording.

  4. Note:Your built-in camera app may not currently support a Bluetooth microphone. Visit for a list of compatible apps for iOS and Android devices.

Live Man-On-The-Street Interviews

  1. While BlueDriver is off, set the Role Select Switch to <Phone>.
  2. Plug BlueDriver-F3 into the bottom of a dynamic microphone and pair to a cell phone.
  3. This setup allows voice band, bi-directional audio to and from your cell phone.
    1. Place or take a call.
    2. Dial into the station for live remote broadcast.
  4. The <Rec> headphone output contains the audio received from your Bluetooth device. This audio is suitable for a live phone call back to the radio station or monitoring audio/ video playback.

Backup Audio Path for Remote Broadcasts


You may have the finest IP CODEC available, but if the internet goes down, there goes the remote.

  1. While BlueDriver is off, set the Role Select Switch to <Phone>.
  2. Simply plug BlueDriver-F3 into the master audio output of your mixer or CODEC.
  3. Pair to your cell phone which is dialed into the station. This setup allows voice band audio, through your cell phone, back to the station.
  4. The mini cable provided with your BlueDriver allows you to connect the <Rec> output from the BlueDriver-F3 to an unbalanced mono or stereo input to allow for monitoring the return audio from the station.

Headset Mode

Transmit Bluetooth A2DP Audio


The “Headset” mode of BlueDriver-F3 connects to Bluetooth headphones or wireless speakers, and provides full 20 kHz audio bandwidth A2DP audio.

  1. While BlueDriver is off, set the Role Select Switch to <Headset>.
  2. Simply plug BlueDriver-F3 into the audio output of your mixer or playback system, Pair to your headphones or speaker.
Keep in mind that Bluetooth A2DP processing adds a 150 millisecond delay, so this application is more appropriate for pre-recorded or broadcast applications that do not have a live mic or interactive conversation. Also keep in mind that the 3 pin XLR is a balanced mono connection. BlueDriver-F3 sends the mono XLR signal to both left and right channels of the Stereo A2DP Bluetooth signal. A2DP is a one-way transmission, with nothing coming back on the return channel.


Input 3-pin Female XLR
Impedance 1k ohms
Level -34 dBu nom.
Output 1/8" (3.5mm) Stereo
Impedance 16 ohms
Level 35 mW (750 mVRMS)
Bluetooth Wireless Technology
Standard 3.0
Frequency Response Hands-Free (Full Duplex): 300 Hz– 3.4 kHz
Hands-Free (Full Duplex HD): 50 Hz– 7 kHz
A2DP (Master » Headset): 30 Hz– 17 kHz
End-to-End Latency Audio-for-Video or Audio Recording:
25 ms using HD Voice Profile.
Streaming Full Bandwidth Audio:
150 ms using Bluetooth A2DP Profile.
Range 66 ft (20 m)
Connector Mini-USB Series B
Battery (250 mAh) Internal Lithium-Ion Polymer Rechargeable
Size 1.1” x 4.4” (2.8 cm x 11.2 cm)
Weight 2.1 oz. (60 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.