Features: 1. LCD1602 display screen, large screen display2. Newly added TYPC-C 5V 3.7V lithium battery power supply, suitable for outdoor convenience and simplicity with charging function3. As a decoder for practicing Morse code, it performs well and checks its decoding ability when listening to CW input sources.4. The red button will turn on or off space character recognition for decoding or not decoding space characters on the screen.5. On board LED lights, two light up when fully Parameters: Display screen: LCD1602 display screenPower supply: DC5-12V/500mAPower supply: 3.7V lithium battery power supplyNewly added TYPC-5V 3.7V lithium battery power supply, suitable for outdoor convenience and simplicity with charging functionProduct Description: As a decoder for practicing Morse code, it performs well and checks its decoding ability when listening to CW input sources.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.The 103 potentiometer will adjust the sensitivity of CW signal recognition, while the 102 potentiometer will adjust the LCD contrast.The red button will turn on or off space character recognition for decoding or not decoding space characters on the screen.Fully , two light upAttention: When using TYPE-C power supply, please toggle the switch when the screen flashes.Material: PC+Metalcolour: As ShownPackage Contents: 1 x decoder module(Due to different product batches, the appearance may be different, which does not affect 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.