It’s a dual-purpose plug. When the front part is withdrawn, it is a UABA male connector. While the front part is pulled out it becomes a micro connector. This two in one usb stretching connector could help phones, tablet PCs connect U disks, mouses, keyboards, game handles these devices directly. You can operate it like on PC as freely as possible. So this device could help you save much space and also it’s easy to use. Besides, it’s equipped with smart testing phones, PC chips inside to recognize automatically while it’s also compatible with these OTG phones and PCS.