Function: 1. Large memory capacity allows you to store many words, which will certainly satisfy all memory needs. 2. The Morse key has segmented storage and data protection for greater storage convenience. 3. In addition, the command mode makes it easy to send words stored inside, and the replay mode is also very convenient. 4. There are only two buttons and pone switch on the key, and the simple operation will greatly save your work. 5. The power off function not only perfectly protects the data inside, but also saves the battery for long use. Specification:Article type: Morse keyProduct material: aluminum alloyProduct model: MX-K2How to use:Battery: 2 x AAA battery (not included)J1: Silence buzzer. li>L/P: di/da or da/diThe F1 key can remember 60 words and has a shutdown function.F2 key can remember 50 words, does not protect data in case of power failure.R3 key is used to control speed, speed increases quickly when R3 value drops.Recording: press F1/F2 for over half a second, you will hear "M", now it records CW automatically.When all is over, press F1/f2, you will hear "S".The "F" will remind you if you exceed the volume and the extra part is not recorded.Message: Each message can not only be stored in long memory, but can also be divided into several partsparts, introducing EOM (End of Message) at the end of each segmentation.Play segmentation: if you want to play the second segmentation, just press the memory key twice; if you want the third,then press the key three times etc.Command mode: press F1 AND F2 simultaneously, you will hear "C", now it is in command mode.Exit command mode: press F1 and F2 again at the same time or you can enter "D" by pressing auto.When you use the auto button, PIC will evaluate: you will hear "R" for the correct command and "?" for an invalid command."A": turn off long-short voice memory."B": Enable long-short voice memory. This is the most common command. li>"C" and "E": Repeat playback. stops automatically after playing 255 times in command mode "E".To turn it off, simply press the auto short voice key. Press it again, after the keyer evaluates "R", it's over."C" cannot stop automatically, but can serve as a character. To turn it off, simply press the auto short voice key.Press it again, after the keyer evaluates "R", it ends."D" exits command mode and returns to common mode.Transfer command "T", takes 30 seconds and then returns to command mode. Package list:1 x Morse Key 1 x User Manual