Simplify your guitar maintenance with this efficient Electric String Winder, designed to make string changing faster and easier. Equipped with a clockwise and counterclockwise switch, it allows precise control of string tension, saving you time and effort whether you are restringing a folk guitar, acoustic guitar, or electric guitar. Key Features: · Dual Direction Control: Easily switch between clockwise and counterclockwise rotation to adjust string tension smoothly and efficiently. · User-Friendly Operation: Intuitive design that accelerates string changes, minimizing the physical effort required for guitar maintenance. · Built-in Rechargeable Li-ion Battery: Featuring an 800mAh 3.7V rechargeable battery, conveniently charged via the included USB cable for cordless, hassle-free use. · Compact and Lightweight Design: With dimensions of 120 x 100mm and weighing just 250g, this string winder is highly portable and easy to store in your guitar case or toolkit. · Versatile Compatibility: Perfectly suited for folk guitars, acoustic guitars, electric guitars, and other stringed instruments, making it an essential tool for guitarists of all levels. Specifications: · Material: Plastic and Metal · Color Options: White, Orange · Maximum Winding Speed: 150KHZ · Working Speed: 5 rpm/s · Working Voltage: 2.7 - 4.3V · Overcharge Conservation Voltage: 4.3V · Battery: Li-ion 3.7V 800mAh · Charge Time: 2-5 hours · Item Size: 120 x 100 mm (4.72 x 3.94 in) · Package Weight: 250g (8.82 ounces) · Package Size: 150 x 120 x 40 mm (5.91 x 4.72 x 1.57 in) Package Includes: · 1 x Electric String Winder · 1 x USB Charging Cable This electric string winder streamlines the restringing process, combining convenience, portability, and reliable performance. Whether you are a professional musician or a hobbyist, this tool delivers efficient guitar string changing with minimal effort.