SENNHEISER MM 550-X $499.95 en-us.sennheiser.com
The combination of wireless operation and active noise reduction is a major selling point for these high-end cans, as is the built-in battery (rechargeable over USB) and its weight (just over 6 oz.). Sound-wise, Sennheiser has done a great job – if your music source has the new Bluetooth apt-X codec, you’ll get even better wireless sound. Noise-canceling is activated by a button on the right earcup – it works particularly well with low frequencies.
PROS Talk-through switch lets you hear external noise
CONS There are few devices that can take advantage of the Bluetooth apt-X feature