This screwdriver set is manufactured with fine workmanship and precise modeling design for stable performance and durability. Comes with 16pcs different Specifications and types of bits to satisfied with your all kinds of demands, and help you to deal with various repairing and fixing works. Wide applications, suitable for repairs and maintenance of electronic products and precise instruments such as motorbike, cellphones, watches and home appliances. Features: Fine workmanship and beautiful modeling design for stable performance and durability. Cordless design, built-in rechargeable battery, USB rechargeable interface, economic and eco-friendly. 3.0Nm large torque, 250r/min high rotation speed, with rotation-speed-protection function. Equipped with contactless electricity measuring function, one button to measure electricity in the wall, if the electricity is detected, a red light will light up here and a lasting beeping sound will making, and if electricity is undetected, the light will not light up and no beeping sound lasting. Ergonomic handle, with antislip bumpy texture design, comfortable grip, easy to use, help improving your working efficiency.. Rotation direction adjustable design, you can adjust the rotation way easily by pressing the forward button and reverse button. Comes with 16pcs different Specifications and types of bits to satisfied with your all kinds of demands, and help you to deal with various repairing and fixing works. Equipped with 3pcs LED shadowless light, 2 working light and one strong bright tail light for easy finding screws and convenient using at night. Strong magnetic-tips for easy taking off bits, and the replacement is quick and convenient. Comes with one storage box to storage the screwdriver set in neat and tidy and convenient to carry around with you. Suitable for apply to wood, metal and plastics material for tighting or loosing screws. Wide applications, suitable for repairs and maintenance of electronic products and precise instruments such as motorbike, cellphones, watches and home appliances. Specifications: Name: Screwdriver and Drill Bits Set Battery: 1 * 4V, 2000mAh battery (included) Rotation speed: 250r/min Max torque: 3.0N.m Item size: 179 * 40 * 33mm / 7.05 * 1.57 * 1.30in Item weight: 280g / 9.88ounce Package size: 220 * 110 * 55mm / 8.66 * 4.33 * 2.17in Package weight: 461g / 16.26ounce Packing List: 1 * Screwdriver 16 * Bits 3 * Extension Rods 1 * USB Cable 1 * Accessory 1 * Guideline