Note: unlike true wireless charging devices (no coil needed) or wireless charging "ready devices" (just add a coil), this solution uses your G2's USB port. That means, no Quick Charge using cable (you don't want to be constantly disconnecting and reconnecting the coil/cable), and file transfers/sync need to be wireless. Because the G2's battery is so good, I don't need to Quick Charge, as it will fully charge overnight wirelessly, and with G2's Wireless Storage applet, all my file transfer needs are taken care of with that and Dropbox. You do need a cover for the G2 but I use one anyway.