Sun Drive keychain is unique

The Sun Drive keychain is very different from most other keychains since this model sports a USB solar charger that allows you to juice up a range of USB-powered devices on-the-go. Even though it is small in size, it is still able to offer up to 35 hours of juice for most portable devices, or roughly the equivalent of 100 minutes of talk time on your cellphone. Apart from that, it can carry vital information within thanks to a choice of 2GB, 4GB, 8GB and 16GB capacity within. Prices start from a surprisingly affordable $23 a pop.

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