1.It is a portable decompression tool, you can send a paragraph at any time. 2.It integrates a of key-type inputs, and outputs a hand-key signal to the radio in a unified manner. This is for the convenience and rapid mixing of keys, without plugging and unplugging cables and changing radio settings. 3.Some old-fashioned radio stations can also use the automatic key to send reports. 4.The PTT output interface can directly drive some external power amplifiers. 5.TYPE-c port is currently the mainstream port on the market. One is to connect to the computer to transmit data, and the other is to charge the built-in battery and float charge. Instructions for use, the key is not just an electronic key, it is a box with a of functions from a practical point of view. The USB socket is used to plug in some peripheral devices. The touch automatic key has high sensitivity and fast response, and can send high-speed cw. The mechanical switch interchangeable oars is to quickly exchange the sculls of the automatic key. Touch the automatic key switch, turn it off when the touch key is not in use, to prevent accidental touch. Power switch and volume knob. The speed knob is to quickly adjust the code speed of the automatic key, and the encoder is stepless to adjust the speed. Pressing down is a function of the hand key, which is used to test the launch and assist the standing wave adjustment. After connecting to the computer, it will recognize two com ports, the first one is for software input. The second is for log software such as n1mm. It is especially suitable for remote radio stations, such as FLEX remote sidetone without delay. Colour:Black Material:plastic Package Contents: 1 * CW Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.