Wireless handheld design optimized for field engineering operations Provides greater maneuverability and freedom from cords in onsite work, reducing setup time and improving accessibility in tight or remote locations. Autoignition for quick and reliable start Starts quickly with minimal effort, improving efficiency during task setup and reducing downtime between uses. Interchangeable joints for versatile functionality By swapping joints, the tool supports multiple operation modes, including welding and hot air processing, enabling a single instrument to perform different tasks without separate devices. Safety switch for controlled operation Builtin safety switch helps prevent accidental activation, enhancing operator protection during handling and setup. Key benefits Flexible field use: wireless design and easy handling in diverse environments. Quick powerup: autoignition reduces startup time. Versatility: interchangeable joints enable welding and hot air tasks with one tool. Safetyfocused: safety switch adds protection during operation. Suitable use scenarios Onsite field installation and repairs where corded tools are impractical and mobility is essential. Fabrication and maintenance tasks that require switching between welding and hot air processing without changing equipment. Workshop or site tasks where rapid ignition and safe operation improve workflow and reduce downtime. Function and compatibility highlights Function: supports welding and hot air processing through interchangeable joints. Compatibility: interchangeable joints allow multiple operation modes with a single tool. Performance: wireless handling for unobstructed operation, autoignition for fast start, safety switch for protective operation. Notes The description preserves the original product's emphasis on wireless handling, autoignition, interchangeable joints for multiple functions, and a safety switch, without adding or omitting core details.