Multi function emergency 12000mAh 12V car jump starter

Multi function emergency 12000mAh 12V car jump starter 1. Car jump start 20 times. Peak current can reach 400A 2. Overcharge protection 3. Extreme cold weather (-45°C) Jump start 4.Full change Iphone 7 times 5.Laptop power supply 2-3h 6.12V car electronic products (i.e. car refrigerator) power supply 7. Illumination 24h 8.Warming flashing, SOS signal 40h 9.Weight and size is only 1/10 of traditional lead-acid jump starter 10.More than 3 years lifetime 11.Cycle Life:More than