The University of Colorado Denver (CU Denver) is the only public urban research university in Colorado. CU Denver emphasizes 
learning through practice, applying classroom knowledge to the real world, and educating a diverse student body of over 14,000 
students. The university continuously provides talented individuals to support the development of the city. During the 2025 
Senior Design Exhibition, the university faced a communication challenge. With many student teams showcasing their graduation 
projects across a large exhibition center, clear communication was essential for fair presentations and evaluations. To address 
this issue, CU Denver chose the Retekess T130S and T131S audio guide systems.

What Was the Problem? 

CU Denver's Senior Design Project Exhibition is one of the most important academic events at the university. Every year, senior students display their final projects.It includes award competitions. It even attracts sponsorships from well-known companies like Nike. This event provides students with a chance to apply the skills they have learned throughout their studies and even gain sponsorships or career opportunities.

For this event, students prepare their projects a year in advance. In April, teams present their year-long work to judges, friends, and family. One representative from each team shares the story behind their project. Given the high quality of these design projects, missing even the smallest detail would be a regret for the judges.

Perfect Presentation and Evaluation of the Projects 

Tammy Hassan,the Executive Administrative Assistant at the Dean’s Office of CU Denver, found the Retekess brand online. After a quick consultation with the Retekess team, the decision was made to purchase the Retekess TT006 64-slot charging case, T130S transmitter, and T131S receivers.

As one of Retekess's best-selling audio guide systems, this solution is known for its long-range communication and clear audio.This is crucial for effective communication in noisy, crowded exhibition environments.

The T130S transmitter is a versatile audio guide system, designed for simplicity and ease of use. It supports one-touch pairing, allowing even those with no experience to set it up quickly. The wireless communication range is up to 100 meters (328 feet), enabling judges or student teams to move freely throughout the exhibition without worrying about signal dropouts.

The system features nine adjustable volume levels, which can be tailored to the noise environment of the event. This is especially helpful for older professors among the judges, ensuring they can hear the presentations clearly. Both the transmitter and receiver come with lanyards for easy wearing, leaving the hands free for other tasks. With a full charge, both the transmitter and receiver can last up to 20 hours, covering the entire day of presentations and evaluations.

The system offers 49 available channels, ensuring that multiple student teams can present at the same time without interference. The transmitter can connect to an unlimited number of receivers, allowing the system to scale with the number of participants. The TT006 64-slot charging case can charge multiple devices at once and comes with a convenient carrying handle, making it easy to transport for outdoor events.

Deserved Graduation Honors

The judges at CU Denver praised the professionalism of the audio guide system, stating that it enabled them to hear every word from the students, giving fair and just evaluations to innovative teams. This was vital for the students who had worked so hard throughout the year and deserved to be recognized for their achievements.