Hair care technology protects your hairline from wet or dry; Hair Massage & Conditioning; Scalp Anti-Aging 6-core casting high-end quality oil reduction; hair loss reversal; Chromotherapy; vibration massage; root strengthening; one-touch operation. Two bristles of different lengths are designed to fit the scalp. The short bristles massage the head closely, allowing weak muscles to strengthen and unclog and tighten the scalp area. The long bristles effectively clean the hair and dirt deep in the hair follicles, activating them. Lock in nutrients and moisturize hair. Double negative ions neutralize hair charge, lock hair nutrients, nourish hair strands, and make hair healthy and shiny like shells. Red light: direct to the bottom of hair follicles, promote hair follicle activity, increase scalp activity, and improve hair loss. Blue light: cleans the roots of hair follicles, reduces scalp oil secretion, repairs the barrier, strengthens hair roots, and improves hair quality. Effectively relax the scalp through physical vibration, deeply soothe the scalp and relieve scalp tension. Double function, vibrating massage opens pore channels, red and blue light can reach deep care root, strengthen hair root. Humanized charging design, plus IPX5 waterproof rating, wet and dry dual use, more convenient e. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. YJL official store