1. Compact folded & detachable powerful Mono / Poly crystalline solar panel design can extend the power output and make the using easily and simply.
2.Built-in 3.7V / 1000mAh Li-ion rechargeable battery ,also can be taken out for other small applications usings.
3.USB charging cable is available ,allow you to get power from computer or other ways when the solar difficult to get.
4.4pcs mobile phone adaptors are available to allow you run different kinds of mobile phones.