Packed with power. Perfect for travel, the TSA carry-on approved Hypersphere Go targets your tightest areas with precision to help you move better wherever you roam. Take it everywhere. The Hypersphere Go is a massage ball that fits into the palm of your hand. With three speeds of vibration—low, medium, and high—you can roll it over your muscles, wherever they need some loosening up. ***Our Hypersphere devices only require USB-A to USB-C charging connection.*** Compact and powerful. The compact, textured, vibrating Hypersphere Go is an affordable, travel-friendly massage ball that fitness enthusiasts swear by. Ideal for rolling out after a workout, but also great for those long workdays spending too much time sitting down. ***When the device is charging, the first red light will stay solid while the rest of the green lights blink in order. Please note that the first red charging light will never turn green, and this is normal. To turn it on, press down on the power button for three seconds until the LED lights illuminate then release the button. Press it once more to select the desired vibration level.*** Mobility roll. Increase mobility by loosening muscles, tendons and joints pre-workout & post-workout. 3 Speeds of vibration, 2 hour battery life, 1 lb, TSA approved carry-on.