If your device manager shows a yellow triangle next to the USB serial port, you are likely using a counterfeit chip. Download and manually install an older, legacy version of the Prolific or CH340 driver to bypass the block.

Select the correct COM port (usually Prolific or USB Serial). Set Vendor: Set Model: BF-C50

Enable this feature to significantly extend operating time by putting the receiver into a pulsing sleep mode when idle.

The most reliable and direct option is usually the manufacturer-supplied software.

The is one of the most popular, ultra-compact, budget-friendly walkie-talkies on the market today . While it works right out of the box with standard factory presets, customizing the channels, setting localized legal frequencies, and managing privacy tones requires computer programming.