Beats Studio2 Wireless Headphones, Matte Black DJ Headphones Bluetooth wireless connection with Adaptive Noise Cancellation (ANC), a rechargeable battery, and re-engineered sound Built-in rechargeable battery lasts 12 hours when using wirelessly and 20 hours when you plug in Streamlined design thats lighter, stronger, and has a more comfortable headband. Streamlined design thats lighter, stronger, and has a more comfortable headband.