HD Quality Sound tubes are truly comfortable fit; Designed to fit any ear comfortably, the ergonomic shape ensures optimal fit and comfort for total music enjoyment. Built-in multifunctional control, it's easy for you to manage your music and phone call hands-free----8-10 hours playtime with Noise Cancellation:- With 10 hours of playtime even with the Active Noise Cancellation (ANC) on, you'll have enough power to block out the noises and keep the music going all day.--- High-Res Audio:- Supports audio files with higher sampling frequency and bit depth than CD. For the listener, that means precision clarity at the high end and strong, smooth bass at the low end.--- Designed for comfort:- QT S neckband earphones are designed with an offset ear tip that conforms more naturally to the human ear.--- Premium metallic finish:- A vacuum metallization manufacturing process gives the earbud its luxurious metallic finish. The result is attractive, comfortable, and sturdy earphones that will provide enjoyment for longer