★ Material: All the parts of the keypad are made of high-quality steel, some parts are anodized, and the contact part is made of pure copper to ensure the conduction performance at the moment of pressing. ★ Comfortable adjustment: Adjustable, and very comfortable to use，In the middle of the code key, the adjustable magnetic elastic design is adopted, the standard stereo socket, the middle magnetic installation is very powerful ★ Sound and Light Reminder: With sound and light modules, it can simulate the sound of real message transmission. At the same time, the 3.5MM audio interface can be connected to the radio station ★ Magnet was responsive: Exquisite design, easy to link and adjust, making the operation easier，Strong magnets in base under the silicone rubber feet，The adjustable magnetic resistance works as it should ★ Scope of Application: Morse key is very suitable for radio enthusiasts, wild camping, or indoor use. It is light enough and can be carried in a portable radio device