Sennheiser unveiled the $350 MOMENTUM Black at the CES 2013. Think they’re expensive? Sennheiser’s most expensive cost a whopping $13,000 and are considered a collector’s item.

Sennheiser unveiled the $350 MOMENTUM Black at the CES 2013. Think they’re expensive? Sennheiser’s most expensive cost a whopping $13,000 and are considered a collector’s item.