1. Programming function: Programming cable allows you to freely write programs for the walkie-talkie, modify Settings, achieve the best performance and convenience. 2. Frequency writing: Through programming - write frequency cable can quickly and easily modify the walkie-talkie frequency, so that your walkie-talkie can better match other models of walkie-talkie, so that communication is clear and reliable. 3. Applicable model: Applicable to WeCallPro brand WCP01/WCP03 model walkie-talkie, as well as some common Type-C interface walkie-talkie on the market. 4. Durable material :USB to Type-C write frequency line is made of strong and durable material, resistant to breakage and wear, long service time. Spec: Item Type: USB Programming Cable Material: ABS Interface: Type-C packing list: 1 x Programming Cable