Established in 1999, Dianmen Digital Technology Co., Ltd. is one of the leading China sennheiser earphone manufacturer and wholesaler of audio, video and communication products in China. We can offer you the complete OEM & ODM sennheiser earphones 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.

Extremely small and lightweight
Powerful, bass-driven stereo sound
Frequency response of 18 Hz- 21 kHz
Manufacturer's 2 year warranty
Sennheiser is the acknowledged world leader in headphone-transducer technology. These CX 300 headphones are its first consumer ?ear-canal? model. The CX 300 model is ideal for use with portable MP3, CD, MD, DVD players and many other portable devices with 3.5mm headphone sockets. Soft Silicone-Rubber Ear adapters in three different sizes are included to ensure a perfect fit, high wearing comfort and an excellent attenuation of ambient noise. Sennheiser's specially-designed Basswind System gives a powerful bass response, and the built-in volume control lets you adjust sound to your own comfort level. Constructed with individually adjustable ear clips and packaged with an ear adapter set that includes extra ear pads in small, medium, and large sizes, the OMX50 offers extra comfort and stability for your listening pleasure.

Flexible ear hooks for a custom fit. Sennheiser Basswind System delivers powerful bass sound. Engineered for exceptional durability and light weight. Compatible with all Portable Players with1/8" connectors. 2 year warranty. OMX80-Blue clip on ear speakers are compatiable with mp3 players, I-Pod and other portable devices with a 1/8 inch connector. Sennheiser Basswind System delivers poweful bass response. Sweat and water-resistant, washable under running water.Cable and carrying pouch included. 2-year warranty. Ready to ramp up your workout? The OMX 80 Sport II earphones let you achieve that and more. Not only will you enjoy a bass-driven stereo sound but also flexible earhooks will offer you a comfortable and secure fit. Their sweat and water-resistant construction also makes them an ideal companion for all music-loving sports enthusiasts. Transducer Principle Dynamic THD Less than 0.1% Weight - 11 grams

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