Qi-certified to deliver up to 10W of wireless charging power to phones, earphones, or other devices on the go. Hi-Speed ​​USB Charging: Plug into either a USB-C or USB-A port to give your phone or tablet a powerful charge of up to 18W. Desktop mode: Use the PowerCore as a wireless board by connecting to a power source via the USB-C port. Wirelessly charge your device while fully recharging the PowerCore internal battery.