With storage and segmented memory function, commonly uses statements for storage. Only two buttons and a switch for easy operation. Includes -off protection function, super saving. Adjustable speed switch, the potentiometer of the control board can be adjusted anytime. Supply: 2 x AAA Batteries (NOT Included) How to use: J1:buzzer mute L or R:di or da or da or di F1 key can remember 60 words ,and it has -off protection fuction. F2 key can remember 50 words , it doesn't protect the data when the fails. R3 key is for speed control, speed getting fast when the value of R3 getting down. Record: Keep pressing on F1 or F2 for more then half second, you will hear 'M', now it records CW automatically. When it is all done, press F1 or f2, you will hear "S". It will remind you by "F" if you exceed the volume, and the extra par t will noe be recorded. Message : Every message can not only be storaged by a long memory, it also can be separate into several parts by inputing EOM (End of Message)at of every segmentation. Play the segmentations: If you want play the second segmentation, just press the memory key 2 times if you want the third one, then press the key 3times, et cetera . mode:press F1 AND F2 at the same time, you will hear "C",now it is under the mode of End mode: press F1 and F2 at same time again, or you can input "D" by pressing the auto key Colour: black Material: metal Package Contents: 1 x Morse Code Auto Memory Key Controller 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.