waterproof outdoor sport camera 1.small size, attractive ... 8G SD card;4, Free hand, particularly suitable for outdoor use such as swimming, biking, hunting, surfing, boating, ... underwater filming.2, high-definition: when compared with traditional cameras, more pixels, a resolution of 640 * 480, Chen ... helmet, bicycle head, arm, wrist and upper and outdoor tourism or watch the game, easy video.5, ...