The XTG Technology ultra-slim "Solar Portable Battery and Charger" is the perfect solution for emergency power and power on the go. The XTG-SOL1500 includes a built-in Lithium Ion battery that can be charged using the provided USB cable or using sunlight via the solar panel. The XTG-SOL1500 includes a USB output to charge your cell phone, smart phone, Mp3, Bluetooth headset and more on the go (using your device's existing USB cable). This is the perfect unit for campers, travelers, gadget enthusiasts, hikers, and power hungry consumers. It also includes a fully adjustable powerful LED light ideal for reading and more. NOTE: The unit will only charge up to 50-60% when using the solar charging - Great for emergency power. Use USB charging to charge the internal battery fully. Part#: XTG-SOL1500 Type: Battery iPod Compatibility: Yes Color: Black 4th Gen iPod touch Compatible: Yes 3rd Gen iPod touch Compatible: Yes 2nd Gen iPod touch Compatible: Yes 1st Gen iPod touch Compatible: Yes