Welcome to the store! DIY parts need to be welded and assembled by yourself, and welding tools are required. Upgraded CW Morse code decoder, optimized circuit board and component layout, better installation. Function upgrade, easier and more convenient operation, supports audio decoding, external CW button, can directly decode received Morse code audio into characters, adjustable decoding speed, buzzer. Simulated sound, free sound switch, making it easier to understand Morse code. Upgraded CW Morse code decoder Power supply: USB power supply 5V Working voltage: 5V Static working current: about 25mA (without decoding) Maximum working current: about 60mA (with decoding buzzer) Functional features 1. CW audio signal input 2. Display received Morse code 3. Decode received Morse code audio into characters 4. Display reception code speed 5. Adjust Morse code reception time 6. External cW button to practice sending Morse code 7. Use buzzer to listen to received Morse code in real time Tips: The product may be constantly updated, due to different batches, the actual product may have slight differences or color differences, which does not affect the use. Color: As shown Material: Plastic Package contents: 1 * DIY Welding Practice Kit (DIY parts, need to be welded by yourself) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!