TWINBIRD Waterproof Head Care Machine TB-G001JP Used only a few times, operation confirmed. Waterproof head spa machine that can be used in the bath. Gently stimulates the scalp, providing a refreshing and invigorating sensation. Features HIGH/LOW two-stage modes, adjustable to your mood. USB rechargeable and cordless, extremely easy to use! Instruction manual and guide sheet included. Care: Lift-up, stiffness relief Area: Scalp