Full Range skin care: Use for facial skin cleansing, exfoliating dead skin, removing makeup and body cleansing Benefits: keep your skin tight and younger-looking. Helps promote blood flow to restore skin vitality and glow. Also promotes faster cell turnover, revealing the younger-looking skin underneath. Waterproof design: completely safe to use in the shower without any worry about potential damages Use: cordless, easy-to-use design. Suitable for all skin types. Requires four AA batteries (not included)