Charge your smartphone anywhere you go with Green House’s latest hand-cranked mobile charger ‘GH-DYH’. Available in three different color options including red, blue and yellow, this eye-catching mobile charger has one USB 5V 500mA output port and comes with a built-in dynamo that requires cranking to generate power. The GH-DYH will go on sale from early September for 1,980 Yen (about $20). [Product Page]

Green House is set to release their newest hand-cranked mobile charger, the GH-DYB3. This travel-friendly device is equipped with a built-in dynamo that requires 5 minutes of cranking to provide 3 minutes of talk time. Not only that, it also comes with 3x AA nickel-metal hydride rechargeable batteries to use it as a normal mobile battery without the need of cranking. Available in black and white color options, the GH-DYB3 will begin shipping from late August for 3,980 Yen (about $40). [Product Page]