This is not your average hand spinner! It contains LED illumination, allowing it to glow in the dark for nighttime play. You can also play music through the built-in Bluetooth speakers by connecting to your phone or device. It's the perfect way to unwind while listening to your favorite tunes. Great for fidgety hands, and relieving stress for ADD and ADHD sufferers by promoting deep thought and focus. Its small size allows for easy portability and is constructed of high quality resin and laser industrial molding technology. Simply hold music spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely. With practice, music spinners can be spun using one hand only using the fingers of one hand to stop and start spinning.