Pyle Wireless Electric Guitar String Winder

The Pyle Wireless Electric Guitar String Winder - Universal Instrument String Winding/Tightening - Works with Guitar, Banjo, Violin, Bass & More - Fits Virtually All Brand Makes & Models - Hassle-Free Trigger-Activated Operation - Built-in Rechargeable Battery - Selectable Direction for Tightening & Loosening - Detachable Knob Clamping System for Easy Use - Includes Wall Power Adapter for Charging - Built-in LED Light - Technical Specs: - Construction Material: Engineered ABS - Winding Speed: 180 RPM - Battery: Ni-Cad, 3.6V 600mAh - Power: 120V - Dimensions (L x W x H): 6.7’’ x 2.0’’ x 5.5’’.