Sennheiser has partnered with the Susan G. Komen foundation to support breast cancer research. Started from December 1st until the end of May 2008, the CX300 stereo ear-canal headphones goes pink bubblegum colored and will be available at $89.95 through select retailers with 10% of the MSRP ($9.99) going to the charity. Sennheiser has also guaranteed a minimum donation of $15,000.

The CX300P comes with ear adapters in three different sizes to ensure a perfect fit and an excellent attenuation of ambient noise, an asymmetrical cable and a 2-year warranty.