Power Tube 3000 looks really solid travel charger ideal for iPod and iPhone devices. This is "Made for iPhone" certified product.
The built-in male USB is designed for convenient re-charge without any cable through a powered USB equipment, the indicators tell you the status of charging. A simple press on the button on top will tell you how much juice left of the power tube, red means below 30%, green means 30-70% and blue means 70% up.
If you are a music lover and travel a lot, then this product will be suitable for you. Its size is very compact and fits in corner of your bag.
Compact in size
Built-in Apple connector
Luxury metallic casing with durable laser etching logo
Compatible to most mobile phones and game consoles
Charging status indicator
Battery level indicator
"Made for iPod" & "Made for iPhone" certified
Output: 5V 1A
Input: 5V 1A
Cycle life: 500times
DC Charging Time: 3 - 4hours
Battery: Li-polymer battery
Operating Temperature: -10 - +45℃
Dimension: 93.5 (L) × 30.4(W) × 21.4(H)mm
Available colors: navy blue / grey / gold / silver / light blue / pink / black / red
Cost : $34.99
Source : craziestgadgets