I was using this without any problems until yesterday. I am selling it due to decluttering and organizing my desk area. This is a set of 3. Please prepare your own USB cables. I can include the USB cables I was using if you want them. *They are not official. The colors and lengths may vary. Quoted from the official website below: Full-Speed Charging It can fully charge the latest Samsung models with 10W output. It can supply power to the latest iPhones and other models with 5W output. Find the perfect position By incorporating two charging coils, you can flexibly change the placement to suit your usage. You can charge your smartphone horizontally while enjoying videos, or vertically while using FaceID or checking messages. With the case on PowerWave can charge smartphones with most cases on (※Please remove cases thicker than 5mm, metal or magnetic cases, and credit cards before charging). Qi Certified PowerWave is Qi certified, so you can use it safely and with peace of mind. It can be used with any Qi-compatible device. Product Specifications Size: Approximately 80 x 68 x 114mm Weight: Approximately 108g Input: 5V-2A / 9V-2A Output: 5W / 10W