The various Bluetooth intercoms for bicycles on the market have sparked heated discussion. CT prepared 10 SENA BiKom 20 units at once and distributed them to fellow cyclists for real-world testing. Starting with an unboxing inspection of the earphone accessories and mounting methods, the footage captures communication performance in different riding scenarios. Whether it's providing real-time road condition alerts during a leisurely long-distance road bike tour, or conducting group tactical communication in a high-tension, wind-noise-heavy seagull circuit race, the footage truthfully presents audio quality and distance limits. In the chaotic environment of high-intensity racing and group rides, it's worth exploring what practical value this equipment can deliver.