Brand: Beats by Dr. Dre • Model: Studio 3 • Type: Over-ear headphones • Connectivity: Bluetooth • Color: Shadow Gray • Wireless Technology: Bluetooth • Form Factor: Headband • Number of Ear Pieces: 2 Beats Studio 3 wireless headphones provide a premium listening experience with "Pure Adaptive Noise Cancelling (Pure ANC)," which actively blocks external noise, and real-time audio calibration that preserves clarity, range, and emotion. They constantly identify sounds to block and automatically adapt to individual fit and music playback. Thanks to the efficiency of the Apple W1 chip, they offer up to 22 hours of battery life with Pure ANC on, and up to 40 hours of playback in low-power mode with Pure ANC off. I am selling these because I bought a new pair. I used them for about 3 months, but there are no noticeable stains or scratches. There are only small scratches as shown in the photos. The charging cable and box are not included. Please purchase only if you understand that these are used items.