Thank you for viewing. This is the Koizumi Treatment Comb Salon Sense 300. Treatment Comb Koizumi Retail Price: 4,180 yen (tax included) Color: White This treatment comb features sonic vibration and can be used in the bath. New, unused item. Due to its thickness, it will be shipped in simple packaging. - Power source: 1 AA alkaline battery (sold separately) - Sonic vibration comb that evenly distributes treatment products throughout the hair. - Sonic vibration makes combing wet hair smooth (sonic vibration approx. 4500 rpm) - OK to use in the bath (※Do not use underwater. Do not submerge the main unit in water.)