2 DC 9V 12V 18V 20V to 5V Power Module with 4 USB Ports. One of the four USB interfaces reserving the divider resistance for your DIY. - Output: 5V, within input range(9V-20V). 4 Pcs Accessory Kit Glasses Ear Cushion Eyeglass Arm Sleeves Eyewear Retainers.
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