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PRODUCT SPECIFICATIONS

1. Wireless Type: 

2.4 GHz ISM worldwide open band

2. Wireless Range: 

Up to 90 ft; depends on RF signal absorption,

reflection and interference

3. RF Sensitivity: 

-86 dBm and -92 dBm 

4. Total Harmonic Distortion: 

0.2%

5. Transmitter RF Output Power: 

<10 mW E.I.R.P. max

6. Antenna Type: 

1/4 wave sleeve dipole, non-removable

7. Number Of Antennas: 

Transmitter: 1, Receiver: 2

(True diversity for both channels simultaneously)

8. Channel Count: 

Up to 4

9. Latency: 

5 ms

10. High-Resolution Audio: 

24-bit / 48 kHz

11. Transmitter Mounting Modes: 

Clip / Hook+Loop

12. Microphone Polar Pattern: 

Omnidirectional

13. Frequency Range: 

80 Hz – 20 kHz

14. Sensitivity: 

-32 dB ± 3 dB

15. Dynamic Range: 

100 dB

16. Signal-To-Noise Ratio: 

100 dB

17. Receiver Analog Outputs: 

3.5 mm TRS

18. Receiver Output Gain: 

0 dB, -10 dB, -20 dB

19. Charging Voltage & Current: 

5V 1A

20. Battery: 

3.8V rechargeable Li-ion

Receiver: 420 mAh / Transmitter: 330 mAh

21. Battery Life:

 4 hours

22. Dimensions:

Receiver: 39 x 14 x 50 mm / Transmitter: 30 x 13 x 43 mm         

23. Weight: 

Receiver: 29 g (1.02 oz) / Transmitter: 18 g (0.63 oz)

TRANSMITTER

RECEIVER

QUICK START

TRANSMITTER APPLICATION METHOD

U6 is an ultra-compact wireless mic system designed primarily 
for video production. The transmitter can be worn discreetly 
in two different modes: Clip and Hook+Loop. The Clip holds 
the transmitter in position on the underside of your shirt for a 
very understated look. Alternately, the Hook+Loop method 
completely conceals the transmitter underneath your clothing. 
Both installation modes are versatile and provide a solution for 
any application. The transmitter features a built-in omnidirectional 
condenser microphone, and wirelessly transmits crystal-clear, 
broadcast-grade digital audio on the 2.4 GHz band to the 
camera-mounted receiver. The system’s four-channel design 
allows you to use four U6 sets in one area; or, with one set, 
having four frequencies to choose from ensures connection if 
there are competing wireless devices nearby. U6 is perfect for 
video content creation, filmmaking, vlogging, YouTube, live 
streaming, and more.
• 2.4 GHz True Diversity wireless system 
• Omnidirectional microphone built into the Transmitter 
• High-resolution 24-bit / 48 kHz audio
• Up to 4 hours of battery life
• Less than 5 ms latency
• 4 wireless channels
• Dynamic range: 100 dB
• Signal-to-noise ratio: 100 dB
• 3.5 mm / 1/8” TRS output from the receiver to your DSLR or 

video camera

•  Three receiver output level presets: 0 dB, -10 dB, and -20 dB 
• Frequency response: 80 Hz – 20 kHz
• Solid RF connection over a 90-foot range (actual range depends 

on RF signal absorption, reflection and interference)

English Manual

U6 COMPACT WIRELESS

MIC SYSTEM

For DSLR Cameras

3

1

1

1

5

1

5

3

2

8

4
7
6

2

Channel display
Gain display
Power LED
Gain switch
3.5 mm TRS output
USB charging port                       
Power and Channel switch
Clip

2. SET UP TRANSMITTER

4. 3-LEVEL OUTPUT GAIN

Please keep the transmitter at 

least 10 inches away from your 

mouth or audio source.

3. CONNECTING THE RECEIVER 

TO A DSLR CAMERA

Slide the receiver’s foot into 

the camera’s shoe mount. 

Connect the receiver output 

to the camera input using 

the supplied 3.5 mm TRS 

cable.

3.1 CONNECTING THE RECEIVER TO A SMARTPHONE

To connect to a smartphone with a TRRS 3.5 mm / 1/8” jack, 

plug one end of the included stereo cable into the receiver, 

and the other end into the TRS to TRRS adapter. Plug the adapter 

into the smartphone’s headphone jack. If your smartphone has 

a USB-C or lightning connector, 

you will need to purchase an 

additional adapter (TRRS to USB-C 

or TRRS to lightning). You can use 

the hook+loop fastener adhesives 

to attach the receiver to your 

smartphone or tripod/mount.

5. BATTERIES AND CHARGING

CLIP

The U6 system comes with a dual USB charging cable, which 
charges the transmitter and the receiver at the same time. Plug 
it into any 5V USB charger adapter or USB power source. 

Note:

 Turn off the power while charging. Please do not use U6 

while charging, as this may reduce your battery life.

HOOK+LOOP

There are two small hook fastener adhesive strips on the 
transmitter. Stick a loop sticker on the inside surface of your 
clothing, or anywhere else within range of the transmitter 
(about 10 inches from your mouth). Then simply press the 
transmitter against the loop piece.

Stick the Hook pieces on the transmitter

Fasten the clip to the transmitter by pressing the round nubs 
on the clip into the round sockets on the transmitter.
When the transmitter is clipped underneath your shirt or 
other clothing, it may create a slight protrusion, but will be 
generally unnoticeable. 

about
10 inches

* Always store at room temperature
* When storing the unit, please check the battery charge 
   level regularly and charge if necessary.

Connect to a 

power supply 

or USB power 

outlet

OR

POWER STATUS LED INDICATES POWER STATUS

LED off = 100% ~ 30%

Solid red = 29% ~ 11%

Flickering red = less than 10%

2
3
4
5
6
7

8

2
3
4
5
6
7

Channel display
Power LED
Microphone
USB charging port
Power and Channel switch
Hook fastener
Clip sockets

Fur windshield

Clip

Loop fastener piece

Loop fastener piece

Hook fastener piece

4

6

7

Dual USB charging cable

3.5 mm to 3.5 mm stereo cable

(for sending audio to a DSLR camera)

3.5 mm Female TRS to 3.5 mm Male TRRS adapter

(for sending audio to a TRRS-input smartphone or laptop)

Hook

Hook

      WARNING

Hook fastener material can catch onto knit or loosely 
woven fabrics (e.g. wool sweaters) and cause damage, so 
avoid making contact between the hook fastener on the 
back of the transmitter and your clothing. The adhesive on 
the back of the loop fastener piece can leave a residue on 
some fabrics. Avoid leaving the loop fastener stuck on 
clothing for a long time. Please use with caution.

FEATURES

1. POWER AND CHANNEL

Turn the units on by pressing and holding the power button 
for 3 seconds, until the display screen  lights up. Short presses 
on the power button will change to the next channel (check 
the 1-4 channel display). Make sure you are set to the same 
channel on both the transmitter and the receiver. When the 
units are successfully paired, the green LED on the receiver 
will illuminate.

POWER ON / CHANNEL

POWER ON / CHANNEL

Transmitter

Receiver

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