1. High Efficiency Solar Panel: This solar charger is made of Class A monocrystalline silicon solar panel, with an efficiency of up to 20%. This means that you will get higher power and faster charging speed under the same sunshine conditions 2. Foldable Portable & Practical: This solar panel charger is light, ultra-thin, and fashionable in color. It is very portable and equipped with 2 mountaineering buckles, which is really convenient for travel, hiking, camping and more outdoor activities. 3. Environmental Protection & Energy Conservation: There is no built-in battery to store electric energy, and it directly supplies power to electronic devices through USB output interface. It is light and convenient. The important thing is that mobile phones can be in places with sunshine. Always store electric energy, so you can travel outdoors without worry. 4. Wide Compatibility: Foldable solar panels can charge smart phones, tablets, laptops, lamps, mobile power supplies, switches, cameras, speakers and more 5V 2A USB rechargeable devices. Material: polysilicon colour: Black Package Contents: 1x Solar Panels Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.