Features:<br> With a 6ml serum cabins in the middle of the brush, it can help you apply essential-oil evenly and easily while massaging your scalp.<br> Tooth-tip Massage: The massage relaxes the head muscles, andcontinuously removes debris, dirt, and oil from the scalp. All you have to do is move-it to different parts of scalp while the bristles do all the work. It feels like a steady continuous pinching and releasing in a pleasant way. The massage feels especially great around the back of scalp and nape of neck.<br> Waterproof, no problem with rinsing, super waterproof performance, clean, hygienic, unclogged, safe, and comfortable.<br> Red light works right in the dermis to promote enhanced collagen and elastin production. Notice improved skin elasticity and texture with regular red light treatments.<br> Perfect for on-the-go hair care, it's an excellent choice as a thoughtful present for family and friends on birthdays, as souvenirs.<br> Notice:<br> 1.Actual color may be slightly different from the image due to different light effect<br> 2.Please allow 1-3cm deviation due to manual measurement<br> <br> Size: 21x8.5x5.7CM<br> Rated voltage: 3.7V<br> Rated power: 5W<br> Battery capacity: 1400mAh<br> Charging interface: Type-C<br> Package: Electronic Red Light Hair Massager + USB charging cable + storage bag + manual + color box<br> Package List:<br> 1 Set Electronic Red Light Hair Massager