Sig Electro Optics Zulu6 HDX features HDX glass to enhance light transmission, resolution and definition afield.With two modes of optical image stabilization that enhances the users ability to find wild game and targets while glassing off hand. New metal battery cap. The Optical Image Stabilization in both modes electronically cancels out shaking and vibration. User selectable modes; Scan Mode is designed specifically for scanning and griding terrain; Target Mode is designed specifically for locking in on wild game and targets; Target mode increases stability up to 50% allowing you to successfully identify targets once located in Scan mode. Includes bino strap, eye covers and nylon case.