Feature:1. 3-in-1 instrument restringing tool, electric string winder + string cutter + bridge pin remover.2. Motorized string winder and reliable string cutter, easy operation, saving time and effort.3. The unique shape of the puller works easily and pleasantly without any guitar bridge damage.4. Built-in rechargeable Li-ion battery and comes with USB charging cable.5. Compact and lightweight design, convenient to store and carry around.6. Suitable for various string instruments like guitar, bass, mandolin, ukulele, etc.Specification:Features:3-in-1 instrument restringing tool, electric string winder + string cutter + bridge pin remover.Motorized string winder and reliable string cutter, easy operation, saving time and effort.The unique shape of the puller works easily and pleasantly without any guitar bridge damage.Built-in rechargeable Li-ion battery and comes with USB charging cable.Compact and lightweight design, convenient to store and carry around.Suitable for various string instruments like guitar, bass, mandolin, ukulele, etc.Specifications:Color: White + BlackMaterial: PlasticPower Supply: Built-in Li-ion Battery 3.7V 750mACharging Method: USB DC 5VUSB Cable Length: About 1 MeterItem Weight: 150g / 5.3ozPackage Size: 25 * 15.5 * 5cm / 9.8 * 6.1 * 2inPackage Weight: 287g / 10.1ozPackage List:1 * Restringing Tool1 * USB Cable1 * User Manual (English)Package List:1 * Restringing Tool1 * USB Cable1 * User Manual (English)