Effective for warming up or treating your muscles pre- and post-workout Great for relaxing stiff and sore muscles caused by overworking or strain 1,800-3,200 RPM single button operation, for easy one-handed use Four percussion speeds allow you to choose your favourite setting Lightweight and compact, so you can take it on the go Soft-touch massage head allows all-over use Rechargeable lithium-ion battery provides 180 of continuous runtime Chargeable by USB-C cord (included)