The Pro Strength Active Adjustable Armband Cell Phone Smart Phone is a phone holder that allows you to keep your phone secure and accessible while you are on the move. It has a velcro fastening for easy and comfortable wear, and a breathable fabric that makes it suitable for sports and outdoor activities. The armband is compatible with various phone models, including Apple and Samsung, and has features such as 360 protection, anti-fingerprint, dustproof, and anti-scratch. It also has a card pocket for added convenience.