Really nice headphones! You can listen to your tunes then you can use the mic to chat when your sweetie calls. Then it's back to your music!
Manufacturer's description:
Listen wirelessly in total comfort with the lightweight MDR-ZX770BT headphones. Built-in Bluetooth® and NFC One-touch connectivity means you can link up to your smartphone in an instant and enjoy music without a wire in sight. You'll also feel every pounding beat, thanks to powerful 1.57 in drivers and Beat Response Control.
No wires, just music - Stream tracks straight from your smartphone. Listen wirelessly in total comfort with the lightweight MDR-ZX770BT headphones. Built-in Bluetooth® and NFC One-touch connectivity means you can instantly link to your smartphone without a wire in sight. You’ll also feel every pounding beat, thanks to powerful 1.57 in drivers and Beat Response Control.
Powerful driver - Feel the energy in every track with a large, high powered driver unit.
One-touch listening - Use NFC to make a quick connection, then stream your favorite tracks via Bluetooth.
Up to 17 hours’ battery life - Listen to your music from dawn to dusk with Bluetooth on.
Total listening freedom - Link up wirelessly with your music player, smartphone, tablet or dock. With Bluetooth, you can listen to all your latest tracks without having to worry about cables.
Connect in an instant - Make a quick wireless connection in seconds with NFC One-touch.
All your music, loud and clear - Precise sound with powerful technologies. Hear every bass lick and guitar solo in perfect clarity. Dynamic 40 mm neodymium drivers respond quickly to precisely reproduce vocals and mid-to-high range notes, while large vents help deliver punchy, rhythmic bass.
Hands-free calls - Thanks to a built-in microphone and phone button, you can take calls hands-free without removing your headphones.
Stream pure, undistorted music - With built-in AAC and SBC codec support, you can stream via Bluetooth from your smartphone without signal loss.
Enjoy CD-quality wireless sound - By reducing the size of audio files, aptX® can send pure audio wirelessly over Bluetooth so you can experience CD-like quality anywhere, anytime.
Comfortable listening, anywhere - With an adjustable headband and soft comfortable earpads, you’ll find these headphones a joy to listen to wherever you go.
Slider headband - A stainless steel slider allows you to find the perfect fit, while providing excellent durability.
Oval earpads - Soft earpads shape around your ears for a snug, comfortable fit.