1. SMART JUMPER CABLES: These car battery jumper clamps are designed to be compatible with ET03 12V jump starters. Other models of jump starters may not be compatible with these jumper clamps. 2. DURABLE MATERIAL FOR LONG-LASTING USE: These jumper clamps are made of high-quality materials to provide reliable protection. They feature a copper-coated aluminum cable and strong spring-loaded clamps that ensure excellent conductivity. 3. 10 PROTECTION SYSTEMS: These intelligent jumper clamps include 10 safety protections such as surge voltage protection, overcurrent protection, reverse polarity protection, high-temperature protection, high-voltage protection, short circuit protection, over-discharge protection, and reverse connection protection. 4. EASY TO USE: These smart jumper clamps are simple to operate, offering a plug-and-play design that helps start your car quickly. An indicator light on the clamps shows whether they are properly connected and functioning correctly.