Established in 1999, Dianmen Digital Technology Co., Ltd. is one of the leading China quality headphone, high quality headphone manufacturer and wholesaler of audio, video and communication products in China. We can offer you the complete OEM & ODM quality headphones, high quality headphones service, including, but not limited to, the products designing, moudling developing, the plastic injection and hardware producing, firmware designing and products producing. We have established an integrated set of QA system of efficiency, which strictly administrates through the whole process including design, manufacture, sales and service. All of key processes for quality control are performed according to ISO9001:2000, CE, FCC, E-MARK and RoHS. Also we collect and offer cool and the newest 2009/2010 fashion products to you.

Earmuff-style hearing protection; easy adjustment for different sizes. CSA approved; 29 dB hearing reduction. Hard plastic casing with soft ear molds, twin cup design minimizes resonance achieving maximum high and low attenuation. Includes 1 set of earmuff hearing protectors (2 ears). Lightweight 1.6 pounds; 30-day product defect replacement. Peltor's dual cup patented Twin Cup design minimizes resonance achieving maximum high and low frequency attuation. This patented design provides the highest noise reduction rating for an earmuff tested in an approved laboratory. The H10A provides effective, lightweight, comfortable protection for noise levels up to 105 dB. CSA Class AL. Peltor's dual cup design minimizes resonance to achieve maximum protection from high and low frequencies; muffling both the deep snorting of the backhoe and the high-pitched whine of the concrete saw. This patented design provides the highest noise reduction rating for earmuffs in its class. Lightweight and super comfortable, the H10A is designed to be worn all day.

10 - 25,000 Hz frequency response. Closed ear cushions for maximum bass and isolation. Includes microphone mount hardware. 10 foot cord. .25-inch plug. The Koss Pro-4AA stereo headphones were built with studio and broadcast use in mind. Closed-ear cushions provide excellent isolation and bass, while high and low sounds come in clear due to its 10 to 25,000 Hz frequency response. The Pro-4AA includes microphone mount hardware, 0.25-inch plug, and a coiled, single-entry 10-foot cord. The headphone that brought KOSS fame as a maker of quality headphones Perfect for home and professional use Lifetime warranty. Earmuff-style hearing protection; easy adjustment for different sizes. CSA approved; 29 dB hearing reduction. Hard plastic casing with soft ear molds, twin cup design minimizes resonance achieving maximum high and low attenuation. Includes 1 set of earmuff hearing protectors (2 ears). Lightweight 1.6 pounds; 30-day product defect replacement.

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