-Bluetooth wireless technology, you can enjoy the freedom of movement while still experiencing high-quality audio -Built-in microphone allows for easy hands-free calling, and the adjustable headband ensures a comfortable fit for extended listening sessions -These headphones also feature volume control, noise cancellation, and stereo sound, making them perfect for both music and phone calls -The ear-pad design provides a double earpiece for maximum sound isolation, and the sleek silver color matches any style. -Gently used, and in full working condition -Rently replaced earpads in fuzzy pink, but can be changed out depending on preference