Product size: 13.5*6.5*5.5 Specification: Double Negative Ions Release Ion Technology Soft Touch Surface Operation Light Indicator Vibrate Massage Material: ABS shell + steel bristles 5 Colors: Black,Sliver,Pink,Purple,Colors,Red Features: 【 IONS TECHNOLOGY 】 --This negative ion vibrates the built-in anion generator, which can generate negative ions and neutralize the positive charge of static electricity. This helps condition, smooth and make hair shinier, while reducing frizz and static. 【 SCALP MASSAGER 】 -This electric negative ion vibrate massage detangler brush with built in vibration massage device can promote your scalp's blood circulation while you sculpt.Relieve fatigue , Relieve stress and take a short break in a busy life.just only need 2*AAA batteries(not included). 【 High-End Detangler Brush 】 --Anti-static stainless steel bristles glide through all hair types, while round ball tips gently massage your scalp. The ergonomic soft grip handle fits comfortably in your hand ensuring an excellent grip experience. 【 Unique Mouse Round Brush Design 】 --All the tips of the ionic comb are smooth and seamless, avoiding damage to the scalp or pulling hair during use,effectively solve the problem of hair knot. Tip has a larger contact surface and gently protects your scalp. 【 Portable Design 】 --The brush is compact, lightweight and portable to carry around anywhere. It can be used anytime, anywhere with the battery. It is easily detachable to clean each part easily.