Dual mode operation for versatile CW training on computers and mobile devices, with plugandplay use and no driver installation required for immediate use. Complete package contents Includes 1 CW trainer with a TypeC interface and 1 CW trainer with a USB interface, providing all components to start practicing right away with your preferred device. Intelligent key recognition An intelligent key recognition interface automatically detects connected hand keys or electronic keys, simplifying setup and ensuring seamless compatibility with your existing equipment. Convenient mode switching A multifunction button enables quick transitions between Mode 1 and Mode 2, while also allowing precise control on mobile screens for improved navigation in training apps. Use scenarios Desktop or laptop CW training: Connect one of the trainers via TypeC or USB interface to your computer, launch your CW training software, and begin practice immediately with compatible devices. Mobile practice on the go: Connect to a smartphone or tablet using the USB interface or TypeC connection, use your preferred CW training apps, and switch modes as needed for different drills. Seamless integration with existing keys: When using a hand key or electronic key, the intelligent recognition interface automatically identifies the connected key type, facilitating easy integration with your current keying setup.