Features: Efficient frequency writing: Provides convenient and fast frequency writing function, which can be used for frequency setting on walkie talkie. Easy operation: With simple operations, users can easily program and write parameters such as frequency. Fast transmission: Utilizing USB interfaces to achieve high-speed data transmission, improving work efficiency and convenience. This product is suitable for the wireless communication accessory market and meets users' frequency setting needs. This product can be used to restore or change the frequency of the walkie talkie. Fit for GP388 GP344 GP328plus GP338plus Specifications: Material:ABS Package Includes: 1x USB Programming Cable note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.