1. This item is used to connect the cable between the radio and the PC, and then program the setting and frequency of the walkie-talkie through the PC 2. Two-pin standard diameter: 3.5mm stereo ear (thimble). Microphone 2.5 mm stereo (bottom pin) 3. The distance between two needles: 11mm 4. Length: 100 cm 5. Weight: 31 grams 6. Suitable for Ke