Amazon.com: Sennheiser CX 400BT True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls - with Noise Cancellation and Customizable Touch Controls, White : Everything Else
Best Buy: Sennheiser CX 400BT True Wireless Earbud Headphones Black CX400TW1 Black
Sennheiser CX 400BT True Wireless Headphones - Black - Newegg.com
Sennheiser CX 400BT True Wireless - For Those Of You Who Think Momentum Is Too Expensive