<p>Features: 1. LCD1602 display screen, large screen display</p> <p>2. Newly added TYPC-C 5V 3.7V lithium battery power supply, suitable for outdoor convenience and simplicity with charging function</p> <p>3. As a decoder for practicing Morse code, it performs well and checks its decoding ability when listening to CW input sources.</p> <p>4. The red button turn on or off space character recognition for decoding or not decoding space characters on the screen.</p> <p>5. On board LED lights, two LEDs light up when fully </p> <p>Parameters: </p> <p>Display screen: LCD1602 display screen</p> <p>Power supply: DC5-12V\/500mA</p> <p>Power supply: 3.7V lithium battery power supply</p> <p>Newly added TYPC-5V 3.7V lithium battery power supply, suitable for outdoor convenience and simplicity with charging function</p> <p>Product Description: </p> <p>As a decoder for practicing Morse code, it performs well and checks its decoding ability when listening to CW input sources.</p> <p>Insert the Morse key into the CWKEY socket to decode your own code, and view the CW decoding as a test on the screen during practice.</p> <p>The 103 potentiometer adjust the sensitivity of CW signal recognition, while the 102 potentiometer adjust the LCD contrast.</p> <p>The red button turn on or off space character recognition for decoding or not decoding space characters on the screen.</p> <p>Fully , two LEDs light up</p> <p>Attention: When using TYPE-C power supply, please toggle the switch when the screen flashes.</p> <p>Material: PC+Metal</p> <p>colour: As Shown</p> <p>Package Contents: </p> <p>1 x decoder module(Due to different product batches, the appearance may be different, which does not affect use.)</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>