It’s not a dock to charge your iPhone 4, but the dock fan can keep your face dry in a hot day. If you’re curious, let’s go on checking Dock Fan for iPhone.
As we can see from the images, dock fan is a little iPhone accessory that measures 82 x 29 x 13mm, and weights 17g. On one side of the gadget, there is a small fan driven by the built-in motor, which features 4,000 rpm. Once connected to iPhone’s 30-pin port, the the small fan will blow a gentle breeze towards you. Apart from that, the dock fan is also compatible with various protective cases.
iPhone dock fan is priced at $36.95 USD. If you’re interested, jump to GeekStuff4U for more details.