Features: *Voltage sensing, anti-drop insulation and no leakage: When the nearby AC voltage is detected, the green LED light in the middle lights up for non-contact electrical measurement to prevent electric shock hazards *Smart motherboard chip: higher security performance and longer life *Intelligent identification of neutral and live wires: when using, touch the top pen cap with your hands, neutral wire - the indicator light is green, live wire - the indicator light is red and green *Slotted/cross bit: 4mm bit diameter, 25mm length, magnetic bit *Line breakpoint search: detect along the line, the place where the LED green light is on is unobstructed and good, and the LED is not on for the line disconnection point Specification: Product model: B05 Product name: Double colored light screwdriver electric pen Shell material: ABS plastic Bit specification: Slotted/cross Shell material: ABS plastic Bit material: chrome vanadium steel magnetic bit Battery type: 3pcs LR41 button batteries (Battery included) Bit length: 25mm/0.98inch Total product length: 168mm/6.61inch Product weight: 43g Packing list: 1*screwdriver electric pen Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.