Power meets portability with the Hyperice Hypersphere Mini. This vibrating massage ball targets tight and sore muscles with precision to help you move better. At one pound, its lightweight and compact size make the Mini perfect for travel. Whether you want to warm-up before exercise or recover post-workout, the Hyperice Hypersphere Mini is your portable massage therapist. Digital circuitry control 3 speeds (42 Hz / 52 Hz / 62 Hz) High intensity vibrating core Patented design with texture silicone exterior Lightweight, compact size (1 lb, 3.5 inches) TSA approved for carry-on.