SKU: 8246012123

Sennheiser HMD 300 X3K1

$129.80 $144.22
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  • USA
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Ships within 48 hours · Estimated delivery Oct 30 - Nov 4

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Description

Sennheiser HMD 300 X3K1The Sennheiser HMD 300 X3K1 is a professional broadcast headset designed for demanding environments where clear communication and comfort are essential. Featuring a closed circumaural design, it delivers linear sound reproduction with a headphone frequency response of 60 Hz to 25 kHz and a dynamic super cardioid microphone covering 40 Hz to 18 kHz for exceptional speech intelligibility. Switchable ActiveGard technology protects hearing from sudden

The Sennheiser HMD 300 X3K1 is a professional broadcast headset designed for demanding environments where clear communication and comfort are essential. Featuring a closed circumaural design, it delivers linear sound reproduction with a headphone frequency response of 60 Hz to 25 kHz and a dynamic super-cardioid microphone covering 40 Hz to 18 kHz for exceptional speech intelligibility.

Switchable ActiveGard® technology protects hearing from sudden audio peaks above 110 dB SPL without compromising clarity, while passive ambient noise attenuation ensures focus in noisy backstage conditions.

The headset includes a copper XLR-3 to 6.3 mm cable that minimizes structure-borne noise, and its modular design allows easy customization. With ultra-low distortion (<0.1% THD), a maximum SPL of 123 dB (ActiveGard off), and rugged construction, the HMD 300 X3K1 combines durability, safety, and premium audio performance for professional broadcasting. Comfortable padding, foldable earcups, and a reversible boom arm guarantee flexibility and long-term wearability.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8246012123

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4.6 ★★★★★
Based on 29 reviews
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A
Verified Purchase
AgnesMarie Pezanetti
Pawtucket, US
★★★★★ 5
Great for refreshing old memory foam pillows
Our memory foam pillows are 2 years old and need a little refreshing. We purchased this and was able to refresh both pillows to firmer than new condition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
A
Ashley
Whiting, US
★★★★★ 4
Easy to use
I recently got one of those large body pillows that people usually use for pregnancy. Unfortunately, it was a little understuffed for my liking, and it isn't stuffed/stitched in a way that keeps the filling from moving around. The filling was bunching in places and sparse in others, causing it to be uneven. Fortunately, the pillow had a cover, and the core had a zipper where I could easily access the stuffing. I decided to try this filling to make up for the gaps. It worked great. I grabbed the stuffing and put it directly into the pillow. I did not allow it to expand fully before stuffing. I probably should have. But this was super easy to use and absolutely solved my problem. It doesn't smell great. There is definitely some smell that could probably be cleared by leaving it to air out for a while. I stuffed it right into the pillow and didn't use it until later that night. It wasn't so strong that it could be smelled through the pillow covering and the pillowcase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
J
Verified Purchase
Jose Garcia
Pawtucket, US
★★★★★ 5
Great for topping off bean bag
Bought this to help top off/fill a bean bag chair we have and it was perfect!
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Reviewed in the United States on April 6, 2026
A
Verified Purchase
Allie Spizalizle
Alexandria, US
★★★★★ 1
Don't get that much
It's not very much and they really suck... but it is what it is..
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Reviewed in the United States on April 7, 2026
M
MOE NH
Massapequa, US
★★★★★ 5
A little goes a long way
I used this to fill a decorative pillow cover, and it worked out wonderful. The foam makes it so comfortable to lay your head on or just lean against. So much more comfortable than the poly fill. Also, a little goes a long way. Great value for this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 23, 2025

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