Collix participated in the drafting of the domestic digital walkie-talkie industry standard, is one of the sponsors of the 2008 Beijing Olympic Torch Relay, and is also the special sponsor of the 2010 Shanghai World Expo walkie-talkie, and its products PT2208 and PT3208 obtained European CE certification and American FCC certification in 2003. Coolson walkie-talkies are extremely cost-effective and are one of the most recommended local walkie-talkie brands.
 
Almost all of the walkie-talkies on sale are digital walkie-talkies, the price ranges from a few hundred yuan to nearly two thousand yuan, the more expensive walkie-talkies have a wider range of frequency use, in addition to the restoration of sound, the overall noise control, the high-end digital walkie-talkies are better than the entry-level walkie-talkies.
 
In the case of Coolson's mid-range radios, the DP405 supports both digital and analog modes for smooth transition of analog systems. At the same time, it can form a series of digital communication systems with Kelixun DMR digital repeater station and vehicle station, in addition, DP405 adopts broadband digital voice coding technology, the audio chip is supplemented by a large cavity design, and the sound is clearer and louder, it is worth mentioning that this walkie-talkie supports one-to-one, one-to-many call mode, and the battery can reach 18 hours of ultra-long use time after being fully charged. The product priced at less than 800 yuan has reached the performance level of walkie-talkies of other brands of more than 1500 yuan.