Features storage and segmented memory functions. Operates using two buttons and a switch. Includes power-off protection and power-saving functionality. Features an adjustable speed switch with a potentiometer on the control board for adjustment. Power Supply: 2 x AAA Batteries (Not Included) Control Functions: J1: Buzzer mute. L/R: Di/da or da/di configuration. F1 Key: Stores 60 words with power-off protection. F2 Key: Stores 50 words. Data is not protected if power fails. R3 Key: Speed control. Recording Operation: Press F1 or F2 for over half a second to begin automatic CW recording (indicated by 'M'). Press F1 or F2 again to complete recording (indicated by 'S'). An 'F' indicator warns of exceeding volume; excess content is not recorded. Message Storage: Supports long memory storage. Messages can be segmented by inputting EOM (End of Message) at the end of each segment. Segment Playback: Press the memory key multiple times to access segments (one press for first segment, two presses for second segment, three presses for third segment). Command Mode: Enter by pressing F1 and F2 simultaneously (indicated by 'C'). Exit by pressing F1 and F2 simultaneously again or by inputting 'D' via the auto key. Specifications: Colour: Black Material: Metal Package Contents: 1 x Morse Code Auto Memory Key Controller. Other items are not included. Notes: Product color may vary slightly due to display settings and lighting. Measurement tolerance is +/- 1-3cm.