Send a Unique Greeting With HYmini’s Solar Postcard
Receiving postcards with pictures from exotic places is fun, but you know what’s even more fun? Receiving a solar postcard. HYMini’s miniNOTE is an ultra-lightweight portable universal power bank that fits into almost any mailbox. The miniNOTE comes complete with a built-in 1200mAh lithium ion rechargeable battery, USB output jack, and USB adapter tips for most 5V devices.
