Operating Temperature: Charging: 0 ℃ ~ 45 ℃ Discharge:-10 ℃ ~ 60 ℃ Storage Temperature:-20 to 60 ℃ Strong Compatibility Using IR-CHARGE Technology, Support iPhone, iPad, IPod, samsung, HTC, Motorola, Xiaomi, Nokia and Other Brands Charge Smart Phones and Tablets, Compatible with Charging Other Digital Products with USB DC-5V Input. Safe and Reliable 1. Multiple Protection Systems Keep Away from Overcharge, over Discharge, over Voltage, over Current, Short Circuit, over Power and Other Threats. 2. Cooling and Energy Saving Technology to Effectively Protect Cell Safety. 3. Passed Many Authoritative Certifications Such as FCC,CE, Un38.3, Qi, Etc. 4. PCBA Wireless Solution 5. Logo. Color Can Be Customized