This conditioning brush uses approximately 4,000 micro-vibrations per minute and chrome-plated steel pins to smooth and condition hair, leaving it silky. The 4,000 micro-vibrations per second detangle hair, making it easier to comb, and also stimulate the scalp. Approximately 700 gauss of magnetism controls static electricity in the hair! The chrome-plated metal brush reduces stress on the hair, suppressing the generation of static electricity. Uses one AA battery (sold separately). Features vibration and magnetic functions.