The charcoal black h.ear in Wireless Bluetooth In-Ear Headphones from Sony allow you to stream music at a bit-rate higher rate than CD's 16-bit resolution, providing audio that parses digital signal into more and better defined segments. Therefore, music will sound more faithful to how it was produced in the analog realm; no more carping about lossy MP3s-now the entire audio world is your oyster. These earbuds accomplish this feat wirelessly, via Bluetooth, with One-Touch NFC pairing, and utilizing Sony's proprietary LDAC codec (so long as your device features LDAC at the SRC point). Thanks to the in-line remote and mic, the h.ear in can also be used to take hands-free calls, and switch tracks without ever having to touch your smartphone. These earphones feature a 0.35" dynamic driver unit which reproduces frequencies between 5 Hz and 40 kHz-beyond the range of human hearing in either direction. Also, Beat Response Control technology delivers a tight bass response making it suitable for low-end focused music styles. Four sets of ear tips come included with these earbuds, as well as a carrying case. After charging them, they'll last you up to 7.5 hours. Give the music you love the quality it deserves. High-Resolution Audio offers an uncompromised rendition of the music - just as the artist intended. Enjoy Hi-Res audio via included wired connection. Perfect for commuting or when you want to enjoy your music all day, when fully charged you can enjoy up to 7.5 hours of music or talk time. You can even continue listening when the battery runs out by simply plugging in the supplied headphone cable. Whatever your look, whatever your taste, h.ear in Wireless headphones are a perfect fit. The single-color, single-shape and choice of earbud sizes ensure long-listening comfort with a style all its own. Listen all day thanks to a lightweight, behind-the-neck design that's so comfortable and natural, you'll forget you're wearing headphones.