The 2025 Shenzhen–Hong Kong Marathon, featuring over 50,000 runners and hundreds of thousands of spectators, presented unprecedented communication demands. Organizers needed to ensure seamless coordination between Hong Kong and Shenzhen authorities, manage extreme crowd density, and overcome environmental challenges such as urban canyon effects and marine band interference. Reliable, clear, and real-time communication was essential for event safety and operational efficiency. Therefore, the event organizers chose Telox TE320 as the communication device for this competition.
Customer Profile
Shenzhen-Hong Kong Marathon
China
Challenges

I. Cross-jurisdiction complexity: Difficulty in coordinating Hong Kong and Shenzhen emergency teams and tracking runners across border checkpoints.


II. High-density scenarios: Over 200,000 spectators along key routes, requiring medical team s to receive instant alerts for emergencies such as heatstroke.


III. Environmental interference: Signal disruptions in urban districts and near marine bands caused unstable communication.


IV. Traditional radio limitations: Conventional radios lacked reliable coverage, strong audio output, and modern features like dual SIM connectivity for cross-border operations.

Telox Solutions

I. 3W High-Power Speaker: Delivered loud and clear audio, essential in noisy marathon environments.


II. 1.77-inch Color Screen: Enabled easy group selection and status visibility, improving coordination across multiple response teams.


III. Dual SIM Connectivity: Ensured continuous communication across both Hong Kong and Shenzhen networks, minimizing cross-border interruptions.


IV. 4000mAh Long-Life Battery: Supported uninterrupted operation throughout the full-day marathon event.


V. IP67 Rugged Protection: Waterproof and dustproof, ensuring reliability even under unpredictable weather and outdoor conditions.


VI. Push-to-Talk Functionality: Allowed instant, one-touch group or individual communication, supporting emergency response, medical teams, and security staff.

Benefits
The integration of Telox TE320 into HKT’s PoC solution enabled seamless cross-border communication, enhanced safety and responsiveness, and improved operational efficiency during the 2025 Shenzhen–Hong Kong Marathon. With reliable performance even in challenging environments, the solution ensured smooth coordination between teams, faster emergency response, and elevated event standards, delivering a safer, more professional large-scale sporting experience.