Morse Code Decoder DIY Kit, CW Audio Decoder with Buzzer, Adjustable Speed, USB 5V Power, for Learning Morse Code Practice This DIY kit requires self-welding and assembly with appropriate tools. Features: - Supports CW audio signal input - Displays received Morse code - Decodes audio into characters - Shows receiving code rate - Adjustable decoding speed and Morse code timing - External CW button for practicing sending - Buzzer for real-time listening - Simulated sound with free sound switch for easier learning Power Supply: USB 5V Working Voltage: 5V Static Current: ~25mA (no decoding) Max Current: ~60mA (with decoding buzzer) Note: Product may be updated; actual item may slightly differ in color or details due to batches. Please allow 1-3cm measurement error. Colors may vary due to lighting and display. Package Includes: 1 * DIY Welding Practice Kit (requires assembly)