Specifications: *Product name: solar panel plus heater with battery compartment *Size: 220 x 180 x 3mm Product weight 400g Heating cable length 100cm *Color: black Product output: DC head waterproof Operating temperature: -10C to 70C/-1F to 120F Material: frosted PET, polysilicon, DC jack head Features: 1. Product protection: DC jack output, battery compartment with dual USB output can charge 5V electronic products and devices 2. Product function and use: easy to use - generates electricity under the sun to charge mobile phones *Product highlights and advantages: as follows; stable and portable - made of high-quality monocrystalline silicon PET, the solar panel is stable and can withstand harsh weather conditions. 3. Compatible with various electronic devices, 5V can be charged, for charging fans, headphones, radios, microphones, mobile phones 4. Can be heated and warmed when camping outdoors in RV 5. The shelter can be hung on the backpack by the handle for traveling, saving your time and bringing much help to your outdoor time. Package includes: 1 x Solar 1 set x Battery case 1 set x Heater 1 x Connecting line