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Certification and 
Safety Approvals

Unique Features

Specification

Product Accessories

Parts Introduction 

Length 
adjustment

LED Indicator

Pair

Power On/Off

Microphone

Mini USB Port

Microphone On/Off

Reset

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PC USB PUCK *1pc

Warranty Card *1pc

User Guide *1pc

USB Charging
Cable *1pc

User Guide Symbols

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Warranty Card

Scope of Warranty

SoundJet warrants that products of its own manufacture purchased 
from any SoundJet authorized distributor will meet the applicable 
SoundJet product specifications and be free from all defects in 
material and workmanship for the following periods from the date of 
purchase:

Headset  One(1) Year

Other Accessories (other than headset) One(1) Year

SoundJet's obligation under this warranty is limited to, at SoundJet's option, either:
(a) repairing; or (b) replacing the product and accessories on an exchange basis. The 
warranty for such repaired or replaced the product and accessories will be valid for the 
remaining warranty period applicable for the original product and accessories.

How To Get Warranty Service

Return the product and accessories to the outlet from which the product and accessories 
were purchased. All warranty claims must be presented within the applicable warranty 
periods above and accompanied by a valid proof-of-purchase.

Warranty Exclusions and limitations

This warranty shall not apply to:

defects or damage resulting from use of the product and accessories in other than 
their normal and customary manner, eg, in excess of their maximum specifications or 
operating instructions;
defects or damage form misuse, accident, neglect, improper testing, installation, 
alteration or modification of any kind, or spillage of food or liquid.
installation, maintenance or repair performed by service personnel not authorized by 
SoundJet;
products and accessories which have had the serial/identification numbers removed or 
made illegible;
all plastic surfaces and all other externally exposed parts that are scratched or 
damaged due to customer normal use;
operation or damage caused by ancillary or peripheral equipment not manufactured by 
SoundJet but used in conjunction with or accompanying the product and accessories.
any other defects or faults which occur for reasons beyond the reasonable control of 
SoundJet.

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KA-1

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KA-1

P/N:E728924003

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Steady red light

Steady greed light

Flashing green light

Devices are waiting for pairing

Devices are paired

Devices are not paired

Ȯ

The headset is charging

FCC Statement

This device complies with part 15 of the FCC 
rules. Operation is subject to the following two 
conditions: (1)This device may not cause harmful 
interference, and (2)This device must accept any 
interference received, including interference that 
may cause undesired operation. 

CE

This product is CE marked according to the 
provisions of the R&TTE Directive. (99/5/EC)

KA-1 is the world first digital wireless headset that 
uniquely delivers the 2.1-channel audio 
performance with extra sound clarity and soft, 
deep bass effects. It provides a voice back 
channel that allows you to talk in conjunction with 
any kinds of PC voice applications. Examples of 
such applications include Skype, MSN, on-line 
gaming, and more. With the high performance 
audio and the unique feature set, KA-1 brings you 
a great value.  To start, we like to introduce to you 
the important certification and safety approvals on 
this headset.

Unique 2.1-Channel design - Each ear cup 
contains 2 speakers for extra clarity and deep 
bass performance.
USB Plug-and-Play wireless headset that 
supports PC music/game sounds and 
back-channel voice simultaneously, no need to 
switch back and forth.
USB Puck direct plug-in to the PC for instant 
use of VoIP, on-line game, DVD, and all kinds of 
entertainment running Windows 2000/XP, 
Macintosh OS10.4 and Linux Fedora 4, 5, and 
6 operating systems.
Ease of use, no software installation needed.
Long standing use, over 15 hours of continuous 
listening time per charge.
Easy charging through USB ports.
Microphone switch on/off control.
Built-in noise canceling microphone for superior 
voice quality.
100 feet distance of effective use.
Equipped with SafeBass safe resonance 
technology.

PC USB Wireless
Headset *1pc

KA-1

Wireless Technology

Listen Time (per charge)
Talk Time (per charge)
Standby Time
Charge Time (full charge)
Distance of Use
Headset Weight
USB Puck Weight
Charging Method
Battery Type
Frequency Response

Audio Quality

Distortion (T.H.D.)

Speaker Drivers

WiStereo

TM

 for advanced 2-way digital 

transmission in the 2.4 GHz frequency 
band
Approximately 15 hours
Approximately 12 hours
Approximately 3 months
Approximately 3 hours
100 feet
7.9 ounces
1.8 ounces
Through PC USB port
Lithium Polymer
20Hz~30,000Hz (perfect for all 
music, game, and voice)
Uncompressed audio for music 
(CD-quality) and voice (extra clarity)
<0.08% (professional grade audio 
performance)
2 on each side for full-range audio and 
sub-woofer enhancement with SafeBass  
technology
30mm Neodymium for left/right channels
40mm Neodymium for subwoofer

Model

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R

Reset

Press to reset the headset, in case this headset 
is not functioning properly.

Microphone On/Off

Switch the button to control microphone on/off.

Power On/Off

Press this button to control power on/off.

Microphone

Receives voice input when the microphone is 
switched on.

Mini USB Port

Connect USB charging cable to PC for recharging.

LED Indicator

A red indicator represents power functions.
A green indicator represents signal connections.

Press to increase the headset volume.

Press to decrease the headset volume.

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Pair

Press pair button to connect the wireless 
headset and the USB Puck.

PC USB Headset

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