The power of a clinical laser therapy unit in a cordless, rechargeable discreet treatment device that fits under your hat for non-chemical, non- invasive, pain-free treatment almost anywhere~anytime! Contains 224 laser diodes. Kit Includes cap, rechargeable battery pack, A/C power adapter for charging and a sturdy travel case. The LCPRO is a drug-free, FDA cleared, portable and rechargeable low-level laser light therapy device proven to regrow your own living hair. Use 30 minutes every other day.