The World&rsquo;s First Built in Camera & Photo Function Sport Bicycle Helmet with 16gb TF Card Complies with the U.S. Consumer Product Safety Commission's safety standards for bicycle helmets Adult bike helmet with Dual Fit adjustable design Fully featured adult bike helmet designed for safety and comfort In the off state, connect the product to a computer with a USB data cable. Then press the ON/OFF key to enter the U disk mode to read the data. Note: Please charge in the off state.