Designed with LED light and Bluetooth speaker, the Bluetooth version is V2.1

High performance bearing for extremely fast and long spin times

Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice

Help reduce stress, anxiety and symptoms associated with ADD/ADHD, Autism, nail biting, hair twirling and leg bouncing; also effective for focus and deep thought

Ergonomic curved shape design for hand comfort and long term usage

Notice: The Bluetooth speaker has a poor sound quality