Features CW Key: This electric key is an electronic key controller built into the transmitter. The principle is to send points and paddles through the three core wires that are point, paddle and common terminal. Brass and Resin: This CW key is made of brass and resin, exquisite workmanship, responsive, long lasting and durable. Mini and Portable: The CW Key is very small and lightweight, it does not take up much space and can be carried in a portable radio. Easy to Install: Because of the small size of the CW key, it can be easily fixed on the radio shell, car cover and other iron objects. Main Purpose: The CW key is perfect for radio enthusiasts and can be used in camping, POTA, SOTA, LOTA or indoors. Specification: Item Type: CW Morse Code Key Material: Brass, Resin Package List:1 x CW Morse Code Key Package List 1 x CW Morse Code Key