U-Series + Aeromic Complete System (Basic)
A complete, professional wireless solution built for fitness instructors.
16-channel UHF wireless system with EMic noise-cancelling headset. The SM716 beltpack has no external antenna, a single on/off switch, marine-grade coated circuit board, and a recessed frequency dial that can't get bumped mid-class. The best-selling fitness wireless system worldwide - over 15 years in studios. Ships with eGloop pre-applied to the connector and battery contacts.
Available frequencies: 520 / 536 / 540 / 560 / 580 MHz
About the UTX16 + Aeromic System
The Aeromic AM11LS paired with the new UTX16 rechargeable beltpack and U-Series receiver. Maximum sweat protection, 2-year headset warranty, and a transmitter built for studios that run all day.
Aeromic AM11LS - LS capsule, Carbon Collar, PhatFrame, 2-year sweat warranty
UTX16 rechargeable beltpack
U-Series SDR-5616 - 16-channel UHF
520 / 536 / 540 / 560 / 580 MHz (select at checkout)
16 selectable (0-9, A-F)
2x AA - alkaline or NiMH rechargeable
Yes — switch between alkaline and NiMH in menu
Yes — shows channel, frequency, battery level
Yes — prevents accidental setting changes
Dual — separate high-impedance (GT) and low-impedance (MT)
HC24 compatible (sold separately) — auto-shutoff when docked
None
Marine-grade coated for sweat protection
T4 MultiMic
XLR + 1/4" jack
SDR-5616 receiver, UTX16 transmitter, Aeromic AM11LS headset with T4 connector, DC power supply, audio cable
Full-time instructors, high-volume studios, HIIT, bootcamp, dance, group fitness, hot yoga
2 years on Aeromic headset
50+ classes/week, up to 7/day
FAQ
What's included in the box?
SDR-5616 receiver, UTX16 rechargeable beltpack transmitter, EMic headset with T4 MultiMic connector, DC power supply, and audio cable.
Can I use rechargeable batteries?
Yes - that's the main upgrade. Use NiMH rechargeable AAs and switch the battery type to NiMH in the transmitter's menu. The UTX16 also supports the HC24 charging dock — drop the transmitter in between classes and it charges without removing the batteries.
Will this work with my existing U-Series receiver?
Yes. The UTX16 works with the same SDR-5616 receiver that's been in U-Series systems for years. If you already have a receiver, you can buy the UTX16 transmitter standalone as an upgrade.
What's the button lock?
A menu setting that disables the SET button so nobody can accidentally change the channel or frequency during class. Enable it once your channel is set and forget about it.
Which frequency do I choose?
Select the frequency that matches your facility. If you're setting up a new system, choose any available option — 520, 536, 540, 560, or 580 MHz. If you're adding to an existing U-Series setup, match the frequency band printed on your current receiver or transmitter. Not sure? Contact us and we'll help.
Do I need the charging dock?
Not required. The UTX16 works with standard alkaline AAs out of the box. The HC24 dock is a convenience upgrade for studios that want to recharge between classes without swapping batteries. Sold separately.
Can I still use alkaline batteries?
Yes. Switch the battery type to AKLN in the menu. The UTX16 supports both alkaline and NiMH rechargeable — your choice.
Does it have an external antenna?
No. Same internal antenna design as the SM716. No antenna wire to corrode, bend, or crackle.
Can I upgrade my SM716 to a UTX16 without replacing the receiver?
Yes. The UTX16 pairs with the same SDR-5616 receiver. Buy the UTX16 transmitter standalone, set it to the same channel as your receiver, and you're running.
What's the dual gain control?
Two separate gain knobs. GT (left) controls high-impedance input level — for instruments like guitars. MT (right) controls low-impedance input — for headset and lapel mics. For fitness use, MT is the one you'll set. Having separate controls means you don't have to compromise if you ever use the transmitter with a different input type.