Quinear one pair of black air compression leg massager with heat three modes and three intensities two levels of soothing heat 20 minute Auto timing relax muscles and relieve soreness improves leg circulation and swelling air compression therapy device is indicated for the relief of minor muscle aches and pains and for increase in circulation pressure range 0-024 mmhg AC DC adapter made in China model number qn-021a please see photo detailing equipment specifications new still in sealed box one size fits all unisex adjustable heat