Fitness Audio UTX16 UHF Transmitter - New & Improved!

Fitness Audio U-Series UTX-16 16-Channel UHF Transmitter – NEW & Improved

Upgrade your studio with the new Fitness Audio UTX-16 Transmitter, the next evolution of our industry-leading wireless microphone technology. Designed as a direct replacement for the SM716 (630MHz), the UTX-16 delivers improved convenience, durability, and performance for group fitness professionals.

No More Battery Swapping – Dock, Charge & Go

One of the biggest advantages of the UTX-16 is its full compatibility with the Fitness Audio Charging Dock. Simply place the transmitter in the dock between classes—no more fumbling with batteries or ongoing replacement costs. Perfect for busy studios, gyms, and instructors who need a reliable, grab-and-go solution.

Can be used with any AA batteries for a non rechargeable option 

Built for Fitness – Sweat-Protected & Studio-Ready

Engineered specifically for high-sweat, high-intensity fitness environments, the UTX-16 features corrosion-resistant lacquer-coated electronics for long-lasting protection and consistent performance.

Flexible 16-Channel Operation

With 16 switchable UHF channels—over 8 of which are compatible for multi-room or dual-channel setups—the UTX-16 keeps your audio clear, interference-free, and ready for any studio layout.

630MHz Frequency Compatibility

The UTX-16 is available exclusively in 630MHz and will seamlessly integrate with your existing Fitness Audio SDR5616 U-Series Receiver (630MHz models only).

How to Check Your Current Frequency

You can confirm your system’s frequency by checking:

• The label on the bottom of your receiver, or

• The silver sticker next to the battery inside your current transmitter.

Need help? Contact our team anytime and we’ll guide you through it.

Transmitter Manual