Clarisonic Mia 1 is the smallest one speed wonder, making it the perfect start to sonic cleansing. With the universal speed 2, this brush is suitable for all skin types, and cleanses six times better than hands alone. This universal speed is also ideal for normal daily use. It is interchangeable for facial brush heads, so you can choose which brush fits you best. Each one of the brushes is uniquely designed and engineered for specific skin types and conditions, so this allows you to customize your Mia 1. This product is also rechargeable, and waterproof, so you can take it in the shower with you.