brand new and high quality. Features: With storage and segmented memory function, commonly uses statements for storage. Only two buttons and a switch for easy operation. Includes power-off for protection function, super power saving. Adjustable speed switch, the potentiometer of the control board can be adjusted. How to use: BATT:2 x AAA battery( not included) J1:buzzer mute L/R:di/da or da/di F1 for key can remember 60 words ,and it has power-off for protection fuction. F2 for key can remember 50 words , it doesn'for t protect the data when the power fails. R3 for key is for speed control, speed getting fast when the value of R3 getting down. Record: Keep pressing on F1 /F2 for more then half second, you will hear 'for M', now it records CW automatically. When it is all done, press F1/ f2, you will hear "S". It will remind you by "F" if you exceed the volume, and the for extra par for 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 the end of every segmentation. for Play the segmentations: If you want for play the second segmentation, just press the memory for key 2 times; if you want the third one, then press the for key 3times, et cetera . Command mode:press F1 AND F2 at the same for time, you will hear "C",now it is under the mode of command End command mode: press F1 and F2 at same for time again, or you can input "D" by pressing the auto for key When you use the auto for key,PIC will make a judgement: you will hear "R" for the right command, and "?" for invalid command. "A" :turn off the memory of long-short voice. "B" :turn on the memory of long-short voice. This is the most common command. "C" and "E": Repeat for play. it will stop automatically after playing 255 times under the 'E'command mode. You just press the short voice auto for key if you want to turn it off. Press it again, after keyer making the judgement of "R", it will be over. "C" can'for t sotp automatically, but it can be used as a sign. You just press the short voice auto for key if you want to turn it off. Press it again, after keyer making the judgement of "R", it will be over. "D" ends the command mode, and goes back to common mode. "for T" transfer command, it lasts for 30 seconds,then goes back to com mand mode. if you press auto for key or memory for key during for T'S 30s, it will stop, and goes back to common mode Specifications: Power Supply: 2 x AAA Batteries (NOT Included) Material: Metal Size: approx.100x55x25mm/3.94x2.17x0.98in Color: Black, As pictures shown Quantity: 1 Pc Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x CW Keyer (other accessories demo in the picture is not included.)