1. Voice prompts for better practice: This CW trainer is equipped with a buzzer that provides voice prompts during training and ensures a more effective learning experience. The builtin voice function helps users refine their Morse code skills with realtime feedback and makes it an ideal tool for beginners and enthusiasts. 2. Versatile Connectivity: The included data cable allows seamless connection of the telegraph key to most CW transceivers and transmitters, improving practical use. Whether practicing or working in real scenarios, this feature ensures compatibility and convenience for all users. 3. Easy removal and installation: With this Morse code trainer, you can easily remove and reinstall the key. The simple installation process ensures that even beginners can set up the device quickly and start practicing without any issues. 4. Workmanship for Beginners: Crafted with precision, this Telegraph Tapper features basic but flawless workmanship, making it easy to use. The userfriendly design is tailored for beginners, providing a smooth and intuitive experience while learning Morse code.