Features: Customizable Home Therapy Sessions: Cap features four steady light modes plus a 10Hz pulse mode, controllable via a user-friendly controller for personalized 0-30 minute sessions. Wear it comfortably for 30 minutes, 3-5 times a week to achieve optimal results. The cap's automatic shut-off ensures a convenient and effective therapy experience during work, relaxation, or even light exercise. Versatile Powering Options: For your convenience, the therapy cap can be powered directly by a wall adapter or by a portable power bank not included, although direct plug-in is recommended for the most stable and effective performance. Package Included: 1 x Red Light Therapy Laser Cap Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. 1 inch 2.54 cm Thanks for your support :