WS One MECHANIC Spot Welding & Short Killer Machine for Mobile Phones Motherboard Short Circuit Fault Detection Testing Tools Set. Pulse welding Burning machine artifact 10 speed spot welding adjustment 10 gears with multiple power adjustable outputs, capable of welding different thicknesses 6-speed burner output 6 adjustable power outputs for quick locking of short circuit faults Large capacity batteries Up to 10000mAh ultra large capacity battery, durable and long-lasting spot welding 1 point welding Spot welding of nickel sheets in mobile phone batteries usurp a cellularphone account Short circuit fault detection of various mobile phone motherboards and computers Lock the motherboard fault location for 1 second Quick and accurate fault location, with automatic burning of the fault point Automatically shut down after 1 minute of inactivity Operating instructions 1. Press and hold the "ON/OFF" button for 5-8 seconds to power on 2. Click "ON/OFF" to switch functions (spot welding/burning machine) 3. Click on "SWITCH" to switch gears (Spot welding 10 gears, burning machine 6 gears) High precision components are embellished with symbols, showcasing the beauty of precision The top of the fuselage is completely transparent You can get a glimpse of the internal structure from the top, with a strong sense of technology inventory Host * 1 Spot welding line * 2 Pen line * 2