Feature: 1. KEY FUNCTION: F1 key can memorize 60 words and has a power off protection function. F2 key can memorize 50 words, does not preserve data when powered off. R3 key is for speed control, the smaller the value, the faster the speed. 2. LARGE STORAGE CAPACITY: With a large storage capacity, the CW keyer can store many words and definitely meet all storage needs. 3. DATA PROTECTION: The morse code key controller has segmented storage and data protection functions, bringing more convenience to storage. 4. MULTI FUNCTION: The command mode makes it easier to send words stored in the keyer, and the repeat playback mode is also very convenient. 5. SIMPLE OPERATION: There are only two buttons and a pone switch on the key controller, which will greatly save you labor. Specification: Item Type: Morse Code Key Controller Material: Metal Battery: 2 x AAA Batteries (Not Included). Package List: 1 x Morse Code Key Controller