A pulsating and massaging face brush that assists in improving the appearance and texture of skin. What it does: Most available facial cleansing brushes oscillate or spin, sometimes pulling the skin, and are not as suitable for more sensitive skin types. The Sonic Pore Cleansing Brush utilizes tiny sonic pulses at a rate of 8,000 strokes per minute to effectively remove impurities while the soft bristles remain gentle on the skin. Made with 150,000 extra-fine, densely packed, antibacterial bristles, it provides both deep cleansing and massage and is great for those with more sensitive skin. The pulsing action removes makeup and impurities much better than manual cleansing.It requires one AAA battery (not included).