Sony WH-CH500 Wireless On-Ear Headphones, Black (WHCH500/B);

Wireless headphones designed for effortless, all day listening. One-touch listening with NFC lets you stream with ease, and a long battery life gives up to 20hrs of playback. A 30mm driver delivers dynamic sound from a compact unit. Make hands-free calls or give voice commands with the built-in microphone. Frequency Response: 20 Hz–20,000 Hz (44.1 kHz Sampling); NFC: Yes; Volume Sensor: Yes