The Challenge: A Growing Business in a Competitive City

Last year, Guillermo faced a serious bottleneck. "I had problems because I had too few devices," he explained. He needed more units to accommodate the growing number of groups he was servicing—but simply adding more devices wasn't enough. He also needed equipment that could handle the unique challenges of guiding in a city where loudspeakers are prohibited and wireless tour guide systems are mandatory.

The Solution: Retekess TT106S Wireless Tour Guide System

After researching options, Guillermo decided to upgrade from his existing T130 units to our newly upgraded TT106S Earhook Receiver Wireless Tour Guide System.

What made the TT106S the right choice?

First and foremost, the TT106S is designed for tour groups of all sizes. A single transmitter can connect to any number of receivers within the coverage area —perfect for Guillermo's French tour groups, which "usually average about thirty people, sometimes more" .

But the features that truly won Guillermo over went beyond basic functionality:

✅ Intuitive Operation: The TT106S receivers are straightforward and user-friendly—exactly what Guillermo needed when handing devices to new groups day after day.

✅ Remote Power Control: One standout feature Guillermo specifically appreciated is the ability to turn off receivers remotely from the transmitter. This means he can conserve battery life across his entire fleet with a single command—a huge time-saver when managing multiple groups simultaneously.

✅ USB Rechargeable: Unlike older systems that required proprietary chargers, the TT106S receivers can be recharged using standard mobile phone chargers. Guillermo noted this was a game-changer: "Clients can keep the receiver for the entire trip and recharge it using their mobile phone charger".

✅ Ultra-Low Latency: With audio delay under 20 milliseconds, the TT106S ensures natural, engaging communication without the distracting echo or lag that can plague inferior systems.

✅ Superior Sound Quality: Guillermo was particularly impressed with the audio performance. "The ones I buy from your website give me no trouble; they provide better noise isolation and pick up the voice perfectly," he told us. He doesn't even use the earpieces that come with the units—he prefers his own—but the receiver's audio quality speaks for itself.

Why the TT106S Works in Santiago's Unique Environment

Santiago de Compostela presents a distinctive set of challenges for tour guides. Unlike Paris, where groups are spread across a vast city, Santiago's tourist attractions are concentrated in a relatively compact historic center. Groups tend to congregate in the same area, leading to associated issues," Guillermo explained .

Channel interference is a real problem. Guillermo insists that any system must have "at least 200 channels" . Why? Because on busy days, guides can run into issues "when two or three guides end up using the same one" . The TT106S offers the channel flexibility needed to avoid these conflicts—a must-have in any major tourist destination like Rome, Naples, Paris, or Santiago .

The system also needs to be robust enough for daily use. Guillermo receives groups from all over—Portugal, Asturias, León, and from across Galicia itself . His equipment gets constant use, day in and day out. The TT106S has proven up to the task.

The Results: From 120 to 250 Units and Beyond

Guillermo started with a 4+120 package—essentially two complete 2+60 systems. But that was just the beginning.

Between February and July 2026, Guillermo made multiple repeat purchases, a clear sign that the TT106S was delivering real value to his business. And he's not stopping there. "This year, I'll be purchasing another 250 to 270," he told us.

His colleagues have taken notice too. Guillermo reports that other companies in Santiago—including ART NATURA, DOIRA, PILGRIMS, and SECCHI—have agreed with his assessment . In fact, SECCHI plans to purchase the new units alongside Guillermo, wanting them exclusively for their own groups . "We all agree that they are excellent units, offering long battery life and optimal range," Guillermo said.

Why Guillermo Chose Retekess

When we asked Guillermo why he keeps coming back to Retekess, his answer was simple: "because I believe in you and your equipment" .

That trust wasn't given lightly. Guillermo had done his homework, consulting with other companies and testing various options. The TT106S consistently came out on top for battery life, range, sound quality, and ease of use.

And with our comprehensive customer and technical support, Guillermo knows he's never alone if issues arise . Every package is a complete, ready-to-use kit that includes transmitters, receivers, lavalier microphones, headphones, and USB charging cables—everything a tour guide needs to get started immediately.

A Partnership for the Future

Guillermo's story is a testament to what happens when the right equipment meets the right business opportunity. Starting with a modest 4+120 system, he's now planning to expand his fleet to over 370 units. His colleagues are following suit. And his clients—the tour groups that rely on his equipment day after day—are benefiting from clear, reliable communication that enhances their experience of one of Spain's most beautiful cities.

As Guillermo put it after sending us photos from various locations across Galicia: "Funcionan de maravilla" — they work wonderfully.