Enhance your string instrument maintenance with this versatile Multi-Function String Winder, designed to effortlessly wind and tighten strings for a variety of instruments including guitars, banjos, violins, and basses. Crafted from a durable combination of plastic and metal, this string winder offers reliable performance and convenience, making restringing tasks faster and easier than ever. Key Features: · Multi-Instrument Compatibility: Perfectly suitable for most acoustic and electric guitars, as well as banjos, violins, basses, and other stringed instruments, ensuring broad usability for musicians of all kinds. · Unique Puller Design: Specially shaped puller allows for smooth operation without causing any damage to the guitar bridge, protecting your instrument during string changes. · Electric Powered and Thread Cutter: Equipped with an electric winder and a built-in reliable thread cutter, this tool simplifies the restringing process, saving you time and reducing hand fatigue. · Compact and Lightweight: Its portable design makes it easy to store and carry, ideal for musicians on-the-go or those with limited workspace. · Built-In Rechargeable Lithium Battery: Features an 800mAh lithium battery with overcharge protection (4.3V max), providing efficient power and safe usage. Battery charges fully in 2-5 hours and supports a working voltage range of 2.7V to 4.3V. · Efficient Operating Speed: Delivers a smooth winding speed of 5 rotations per minute with a highest frequency of 15KHz, offering consistent and controlled string tensioning. Specifications: · Item Type: String Winder · Material: Plastic + Metal · Battery Type: Built-in Lithium Battery (800mAh) · Maximum Speed: 15KHz · Working Speed: 5 R/Min · Working Voltage: 2.7～4.3V · Overcharge Protection Voltage: 4.3V · Charging Time: 2-5 Hours Package Includes: · 1 x Multi-Function String Winder This multi-function string winder offers a reliable, easy-to-use solution for musicians seeking to maintain and tune their string instruments efficiently. Its thoughtful design safeguards delicate instrument parts while providing fast, precise string winding and cutting, making it an essential accessory for music enthusiasts and professionals.