Feature: 1. Compact and Easy to Carry: Portable car jumper starter measures 7.1 x 3.9 x 2.4in, making it easy to carry, and is suitable for starting and charging vehicles in emergency situations. 2. Multi Functional: Portable jumper starter combines the functions of emergency starting power supply and air pump, catering to various vehicle needs. 3. Powerful Performance: With a peak current of 2000A, the jump starter efficiently charges car batteries, ensuring dependable power for vehicles at all times. 4. Enhanced Safety: Automotive jumper starter is equipped with multiple protective function mechanisms such as overvoltage and short circuit protective function, prioritizing the safety of both vehicles and users. 5. Premium Materials: Made of ABS material, the jumper starter is flame retardant, high temperature resistant, and high reliability even in extreme temperatures. Specification: Item Type: Portable Car Jump Starter Material: ABS Size: Approx. 18 x 10 x 6cm / 7.1 x 3.9 x 2.4in Battery Type: Lithium Ion Battery Battery Capacity: 2000mAhx4 Peak Current: 2000A Flame Retardant Grade: V0 Operating Temperature Range: -30°C to 65°C. Package List: 1 x Portable Car Jump Starter1 x Charging Cable 1 x Inflatable Tube 3 x Inflatable Head 1 x Storage Bag 1 x USB Cable 1 x Instruction Manual Note: 1. The emergency start‑up operation steps of the car must not be reversed. 2. In case of malfunction, it is prohibited to dismantle the main unit without authorization, otherwise it may cause safety accidents. 3. The positive and negative poles of the power supply must not be docked, reversed or indirectly short‑circuited, otherwise it may cause safety accidents. 4. When not in use for a long time (more than 90 days), it is necessary to maintain a certain power level and charge and discharge at least once every 3 months, otherwise it may cause power damage. 5. In case of abnormal situations during use or charging, please stop using it. 6. Please keep this product away from high temperatures or humid environments, and do not place it in direct sunlight. 7. Children are prohibited from contacting this product to prevent safety accidents. 8. When charging the product, please place it in an open position and have an adult supervise it. 9. Please read the user manual carefully and operate according to the instructions. 10. It is strictly prohibited to disassemble, pierce, modify the product privately, or immerse it in water, fire, or expose it to an environment above 65°C to avoid product damage or other dangers.11. Do not clip the battery clips, or directly or indirectly connect the positive and negative poles with a conductor to avoid safety accidents. 12. If there are swelling/leakage/odor situations with the main unit, please stop using it immediately and place it in a safe place