Richitek RC2401, RC2406 and RC2500 on the Expo Floor

Exhibition halls punish ordinary audio. Aisle chatter, LED walls and dense crowds swallow a presenter's voice within a few metres, and a booth demonstration that cannot be heard is a demonstration that does not convert. This comparison puts three license-free 2.4 GHz Richitek systems against two established alternatives, so you can spec audio that works at every show on your calendar. See our conference and trade show audio solutions for the wider picture before you choose.

RC2401: Fifty Channels for Booth Demonstrations

The RC2401 is the booth workhorse. It runs on the global 2.4 GHz ISM band at 2403-2483 MHz, which needs no licence and no regional registration, and offers 50 PLL digital channels so neighbouring exhibitors never bleed into your demo. Open-area range reaches 200 metres, enough for a presenter to walk visitors from the booth to a machine display without dropping audio. The transmitter delivers more than 10 hours of continuous use while receivers hold over 20 hours, comfortably covering a full show day plus setup. One-button synchronisation pairs a transmitter with any number of receivers in seconds, which matters when temporary staff arrive an hour before doors open. Hi-Fi digital voice transmission keeps product explanations intelligible, and an IPX4 splash-resistant shell survives accidental drink spills and load-in dust.

RC2406: Eighty Channels When the Hall Crowds In

The RC2406 raises channel capacity to 80, the highest of the three, using the same 2403-2483 MHz license-free band with PLL anti-interference technology. That headroom pays off in dense halls where several demo groups, a press briefing and a training session all run at once within a few hundred metres. Range again reaches 200 metres in open areas, and a 1500 mAh lithium battery supports full-day continuous operation on both transmitter and receiver. At 50 g the unit stays comfortable for visitors who wear a receiver through a long walk-through, and the audio tuning is optimised for clear English speech, a practical touch for international shows where attendees may be listening in a second language. One-click pairing means no menus and no training.

RC2500: High-Power Output With Forty-Hour Receivers

The RC2500 is the endurance and output option. A 20 mW high-power transmitter pushes signal through hall congestion better than standard tour guide systems, across the same license-free 2403-2483 MHz band with 50 independent PLL channels. Battery life is the headline: the transmitter runs 12 hours while receivers reach 40 hours on a single charge, which can mean charging once for an entire three-day show. Audio frequency response spans 20 Hz to 20 kHz for natural voice reproduction, an operating range of -15 C to 50 C covers unheated loading docks and hot summer halls, and one-click frequency synchronisation keeps setup instant. CE, EMC, LVD, RED and RoHS certification simplifies shipping the kit across borders.

How the Three Systems Cover One Exhibition Season

All three share the same license-free 2.4 GHz ISM band, one-click pairing and unlimited receiver capacity per transmitter, so a single spare-parts pool and one charging routine serve the whole fleet. Field the RC2406 when many groups run in parallel, the RC2500 when a show runs long days with little time to recharge, and the RC2401 for straightforward single-booth presentations. Because none of them needs a frequency assignment, the same case can fly to Hannover, Las Vegas, Guangzhou and Dubai without paperwork.

Audio-Technica 5000 Series: A UHF Stage Benchmark

Audio-Technica positions the 5000 Series as a high-end professional UHF wireless system, part of its Artist Elite line, pairing AEW-T4100 and AEW-T5400 transmitters with the AEW-R5200 dual receiver. It is engineered for performances, conferences and large events where sound engineering support is already on site. Being a UHF system, it operates in bands that differ between countries, so exhibitors shipping internationally generally need to confirm local frequency availability or coordinate assignments before each show. For a single-venue stage production with an audio team present, that is routine work. For a marketing team flying one kit to four countries, it adds a planning step.

mGuide Pellegrino 2: A Europe-Band Team Option

The mGuide Pellegrino 2 is a digital transmitter built for team guiding, operating on the 863-865 MHz band with a stated 32-hour battery life. It sits in the mid-range of the market and suits operators whose work stays inside regions where that band is cleared. The 863-865 MHz allocation is recognised in Europe but is not available for this use in most of Asia or North America, which is the practical constraint for exhibitors whose show calendar crosses continents. Where the band is valid, the long transmitter runtime is a genuine advantage for continuous guiding work.

Spec-by-Spec Comparison for Exhibition Buyers

How to Choose the Right Exhibition Audio Kit

Final Thoughts for Multi-Show Exhibitors

For teams that exhibit in more than one country, band choice quietly decides whether the kit works at the next show. The RC2401, RC2406 and RC2500 all operate on the license-free 2.4 GHz ISM band, so the same case travels without frequency applications, while the Audio-Technica 5000 Series and mGuide Pellegrino 2 remain strong choices when your events stay inside one regulatory region or when you already have sound engineering on site. Match channel count to hall density, battery life to show length, and let the band decide the rest. Explore the full wireless tour guide system range, or compare tour guide system models side by side before you order.