Most of the earliest desktop mobile phone holders were this "herringbone" mobile phone holder, which had a groove for placing the mobile phone and the back could be firmly supported. Advantages: Small size, portable, not easy to lose; stronger stability and anti-slip properties; the back as a support can be adjusted at multiple angles; universal for mobile phones and tablets. Disadvantages: Some types on the market cannot be folded and are not easy to store; the grooves of some brackets will block the subtitles; the phone cannot be charged when placed upright; it is best to choose a bracket with grooves and anti-slip silicone pads on the bottom to prevent sliding and causing the phone to bump.