【3 phone holders, 4 usb ports】 the 3-phone-holder design supports the simultaneous use of 3 mobile phones, which is very suitable for youtuber or other bloggers to live streaming on different platforms at the same time. there are also 4 usb charging ports, which can charge mobile phones or cameras to ensure uninterrupted shooting. the 360° rotating mobile phone holder clip meets the needs of placing the mobile phone horizontally or vertically or at other angles you want.