Attention: Solar charger(38000mAh capacity) is foremergency use, not a main charging resource, it takes about 40h tofully charge under direct sunlight, so it is recommended to chargeby wall charger. 

Features: 
Easy to Carry 
Battery comes with a hook so you can simply attach it to yourbackpack when in outdoor and it will soak up energy from sun.Elegent small and portable easy to use. 
Dual USB Ports 
Two USB output can charge two devices at the same time, alsocompatible with most 5V USB-Charged devices such as iPhone,Kindles, Gopro Camera, GPS and Bluetooth Speaker. 
LED Flashlight & SOS Function 
Built-in LED can be used as a torch, or as emergency lighting indarkness, the flashing light mode can be used as SOS. 
Widely compatible 
Compatible with iPhone Smartphones HTC Nexus Gopro Camera GPSTablets and other 5V USB devices 
Charging Status 
4 LED status of charge indicators indicate the charging anddischarging process. 
Security Protection 
Waterproof dustproof and shock-resistant, ideal for outside use.Long lifespan with more than 500 recharging times. 

Specification: 
* Battery type: Li-polymer battery 
* Material: ABS+PC+Silicone 
* Capacity: 15000mAh 
* Solar Charger: Max.5V 200mAh 
* Input: DC 5V/1A 
* Output:DC 5V/1A; 5V/2A 
* Size: 162 x 81 x 22mm/ 6.3 x 3.2 x 0.87in 
* Weight: 320g /11.2 oz