The PX 210 BT headphones from Sennheiser provide high-quality audio in a wireless design that's ideal for mobile lifestyles. The headphones use Bluetooth 2.1 wireless technology to communicate with Bluetooth audio devices, or with a Sennheiser Bluetooth transmitter (sold separately). The headphones have neodymium magnets and Duofol diaphragms to create crisp, natural audio with a wide frequency response. The headphones also support apt-X audio compression for true hi-fi quality.
The headphones have an adjustable, cushioned headband and thick on-ear cushions to provide lasting comfort. The thick cushions and closed-back earcup design also help to block out unwanted environmental noise. One earcup offers built-in controls allowing you to wirelessly pause, skip tracks, and adjust volume.
For times when you want to use non-Bluetooth devices or there's no need to be wireless, the headphones include a cable that lets you use them as standard wired headphones. The headphones operate on a rechargeable Lithium Polymer battery, which is charged with the included USB cable. For excellent portability, the headphones have a folding design for storage in the included carrying case.