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General Spec Sheet

KA-1 Headset

1. Domes

Over The Head Ear Cup (Black Color)
2. Head pad

Deluxe Foam Head Pad
3. Head band

Deluxe Black Headband Spring
4. Ear seals

Gel Ear seal
5. Mic boom

Adjustable Flex Boom
6. Microphone

Type: Electret Noise Canceling Mic with Preamp (#M65)

Frequency Response: 300 - 8,000 Hz

Mic Source Resistance: 220 - 2,200 Ohm

Mic Boom Type: Full Flex Boom
7. Speaker

Type: Ultra-Lite Neodymium Speakers

Connection: Built-In Cord Mono/Stereo Switch

Impedance: Stereo 300 Ohm, Mono 150 Ohm

Frequency Range: 200 - 17,000 Hz

Sensitivity: 101dB +/- 5dB SPL, re 1mw input @1kHz

Volume Control Attenuation: 23 dB
8. Techical

NRR: 24 dB

Hardware: Stainless Steel

Domes: High Impact ABS Plastic

Weight: 21.4 oz
9. Mechanical 

Tensile Reinforced Copper Wiring

5’ Straight Shielded Cord

Polyurethane Insulation (UV Safe)

Gold Plated Plugs: Mic Plug (.206” dia), Phn (.250” dia)

3.5mm Scanner Jack (MP3, Phone)
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General Spec Sheets

KA-1 Headset P1 Headset H1 Headset

Headset Guide

Your headset may come with either a single or dual volume control located on one or both ear domes. Rotate the knob to adjust the volume to a comfortable level.
If your headset includes a mono/stereo switch located in the Y-block on the main headset cable, select the setting that matches your equipment. Use the stereo position for stereo audio sources. For all other applications, use the mono position. Refer to your aircraft radio or general aviation intercom manual for guidance on the correct setting.
Your headset is equipped with either a full-flex or wire boom that can be bent and positioned for accurate microphone placement. Adjust the boom so the microphone sits at the corner of your mouth, about ⅛ inch from your lips. Do not force the boom past its natural stopping point.
Loosen the oversized thumb nut on the side of the headset by hand. Adjust the headband up or down until the ear domes fit comfortably over your ears. Tighten the thumb nut to lock the position.
Replace the ear seals if they become worn, torn, or hardened over time. To install a new ear seal, insert the lip of the seal into the groove of the ear dome. Hold the dome firmly and keep the top of the ear seal in place while working the lip into the groove around the dome. You may need to pull slightly to ensure the seal fits tightly.
Replace the headband if it becomes worn, torn, or hardened. To replace it, grasp the top liner and gently open the Velcro seam to separate it from the inner strip. Remove the old headband and insert the new one.

General Maintenance

Regular maintenance will help keep your headset performing properly and looking like new.

Do not use harsh chemicals or abrasive cleaners, and do not submerge any part of the headset in water.

Use a clean, damp cloth to gently wipe the ear cups and head pad. For heavily soiled areas, use a mild solution of water and household liquid detergent.

To clean the microphone and plugs, wipe them with a clean cloth lightly dampened with alcohol.

Ear seals and microphone muffs are replaceable and should be changed as needed when they become worn.

Returns & Warranty

Our return policy is 30 days. If 30 days have passed since your purchase, unfortunately we can’t offer a refund or an exchange. To be eligible for a return, the item must be unused and in the same condition that it was received in. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase from original store.
Once your return is received and inspected, we will send an email to notify that we have received the returned item. If it meets the requirements above, then the refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 15 business days.
Please note that banks have different processing time periods. If you haven’t received a refund in 15 business days, please check with the bank as it may still be processing. If you still have not received your refund, please contact us at help@koreheadset.com.
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at help@koreheadset.com.
Warranty is limited to original purchaser and covers defects in material and workmanship for a period of five (5) years from date of original purchase. Warranty is not valid if our inspection shows that the equipment has been subjected to negligence, misuse or accident, or if it has been tampered with, installed, or altered in any way. All products must be shipped to our address, freight prepaid. Email help@koreheadset.com with a copy of your dated sales receipt and a detailed description of the problem to initiate a claim.
To return your product, please contact us at help@koreheadset.com. You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

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