Features: The K8 Morse Code Training Key combines a red wood base with stainless steel structure, feature audios visual feedback for immersive CW operation practice and radio transmission. Crafted with premium materials including tapping components and connectors, this portable practice key integrates a standard 3.5mm audios interfaces for equipment connectivities. Ideal for amateur radio enthusiasts, Morse code beginner, and instructors seek reliable training tools with professional grade tactile responsiveness. Perfect for home practice stations, educational demonstrations, or field operations due to its design and travel friendly lightweight construction. Engineered with stability and smooth keying action, this double purpose device ensures precise code transmission while doubling as a elegant decorative piece for enthusiasts. Specifications: Material: Wood, Metal CW key interfaces: 3.5mm audios interfaces Size: about. 130x60x50mm/5.12x2.36x1.97in Package Includes: 1 Set Training CW Key note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.