950BT $84.99 link - http://www.ebay.com/itm/Sony-MDR-...1562068106
Bluetooth audio streaming with AAC and apt-X1
Electronic Bass Boost circuitry for added bass emphasis
Passive mode for normal, corded operation without battery
Comfortable around-the-ear design
40mm drivers for wide frequency response (3 - 28 kHz, with cord)

770BT $54.99 link - http://www.ebay.com/itm/Sony-MDR-...1504849848
Bluetooth audio streaming with AAC and aptX
Convenient One-touch pairing with NFC
Built-in microphone for hands-free phone calling
40mm drivers for wide frequency response
Comfortable, swiveling, around the ear design