【Brand New, Unopened】 Pioneer Bluetooth Noise Canceling Over-Ear Headphones Black SEMS9BNB I have opened the box, but the headphones are unused. I am selling them because I don't plan to use them in the future. Thank you. ======================================= ★Qualcomm aptX HD Audio Bluetooth Technology Enjoy high-quality wireless music and calls with ease. The S9 uses Bluetooth technology to provide a stable wireless connection with smartphones and audio devices. Compatible with aptX HD audio, you can enjoy high-quality wireless playback up to 48kHz/24bit. Operation is also easy with the buttons on the housing. ★Noise Canceling and Ambient Awareness Mode The S9 relieves stress with music, whether on a crowded flight or in the office. Active noise canceling technology works by detecting ambient sounds and canceling them out with opposite frequencies. You can also select Ambient Awareness Mode to let in ambient sounds moderately. ★Go Further on a Single Charge The lightweight built-in battery allows for up to 24 hours of operation, including playback. A full charge takes about 4 hours with the included USB cable, allowing you to enjoy long flights without needing to recharge. Even if the battery runs low, you can continue listening to music using the included headphone cable.