Roll away aches and pains with the Meteor's therapeutic vibration coupled with soothing heat/ At 4in in diameter and weighing only 2lbs, the Meteor can hold up to 300lbs of pressure to make sure you can target those pesky trigger points/ The Meteor has an antimicrobial silicone surface/ The Meteor's battery will last for up to 90 minutes on full power and 6+ hours with vibration only/ It is powered by an internal Lithium Polymer battery and comes with a USB C cord for recharging which takes about 4 hours/ A Quick Start Guide and User Manual is included as well as details about the 1 Year Manufacturer's Warranty