The Harman Kardon Onyx Studio 8 is a portable, wireless Bluetooth speaker offering 8 hours of playtime and a self-tuning feature for optimal audio performance in any environment. It's designed with recycled materials, including a speaker grille fabric made from recycled polyester yarn, and features a sleek handle for easy portability. The speaker also supports wireless dual sound, allowing you to pair two Onyx Studio 8 speakers for a wider, more detailed stereo experience.