Top features: - Practical wireless design lets you immerse yourself in your music - Compatible with Hi-Resolution audio to hear every detail - Hands-free calls with a built-in microphone Practical wireless designThe Sony h.ear Series WIH700 Wireless Bluetooth Headphones feature a practical neckband to keep them secure while you're out and about.Using Bluetooth technology you can connect to your devices wirelessly, to stream songs without the hassle of cables. You also have the option of connecting the detachable cable when you need to use a wired connection.With up to 8 hours of battery life from a two and a half hour charge, you can listen to your music for longer no matter where you are.Compatible with Hi-Resolution audioCompatible with Hi-Resolution audio files, the headphones help to bring your music to life with crystal clear clarity.Handsfree callsUsing the built-in microphone you can answer calls without having to remove the headphones. When you've finished your call, you can continue listening to your music, all while keeping the headphones on your head.