1. CW audio signal input2. Display received Morse code3. Decode received Morse code audio into characters4. Display receiving code rate5. Adjust the time of receiving Morse codeCan connect external CW button for practicing Morse code (CW button not included)With buzzer, listen to the received Morse code in real timeKit name:CW Morse code decoder DIY kitPower supply:USB 5V power supplyWorking voltage:5VStatic working current:about 25mA (without decoding)Maximum working current:about 60mA (when the decoding buzzer sounds)Note:This is a DIY kit and you need to assemble it yourselfColour:Blue & Green & TransparentMaterial:PCB+electronic components+acrylicPackage Contents:1 * CW Morse code decoder DIY kit(Shipping in disassembled, requires assembly before use.)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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.