The IEM-Digital 12 Wireless Stereo In-Ear Monitoring System by Vocopro offers dual mono or true stereo monitoring for vocalists and musicians in clubs, concerts, and assistive listening applications. The in-ear monitoring system is comprised of a dual-antenna transmitter with a rackmount kit and AC adapter, and 12 bodypack receivers—each with two AA rechargeable batteries, in-ear headphones with a set of eartips, and a USB cable with a wall adapter. 

It utilizes 24-bit digital dual-frequency technology for proper separation between the left and right channels while operating with 18 selectable channels in the 902 to 928 MHz frequency range to avoid interference. One-touch sync enables simple setup, and the selectable high- or low-transmission modes accommodate a variety of venue sizes. 

The transmitter's two XLR-1/4" combo inputs accept balanced or unbalanced line-level signals. Its outputs include a front-panel 1/4" TRS jack for stereo headphones and a rear-panel 3.5mm loop output for connecting to another transmitter. The bodypack receivers feature a 3.5mm TRS mini headphone jack and a micro-USB charging port. The transmitter and receivers are constructed of metal for rugged durability gig after gig.

24-Bit Digital Dual-Frequency Technology    18 Selectable Channels, One-Touch Sync    1 x Transmitter & 12 x Receivers    Use up to 9 Sets Simultaneously    2 x XLR-1/4" Combo Inputs on Transmitter    1 x 1/4" Headphone Jack on Transmitter    1 x 3.5mm Headphone Jack on Receiver    Includes In-Ear Headphones & Eartips    Includes Rackmount Kit & AC Adapter    Includes USB Cable & Wall Adapter

Rugged metal construction for lasting durability

24-bit digital dual-frequency transmitter and receivers

Up to 9 sets are designed to work together simultaneously

18 selectable frequency channels to avoid wireless RF conflict

Supports operation in true stereo or dual mono

Two independent channel outputs give each performer a dedicated connection

Operates in the 902 to 928 MHz frequency range free of interference

High- or low-transmission preference

Instantaneous connection and setup with one-touch IR sync

Digital transmitter display shows frequency, channel, audio level, and more

Receiver status LEDs

Adjustable gain and headphone level on transmitter

Volume/power knob and built-in belt clip on receivers

Related Questions and Answers

Q: 1. My dad likes the volume so high that you almost have to shout above the TV to hear yourself. Can you turn these up that high?

A: The Sennheiser RS 175 Digital Wireless Headphone System (BH # SERS175) features an independent volume control that delivers vey high audio volumes. Your individual circumstances may require that your dad wears the headphones.

Q: 2. Will the image stabilization and auto-focus work with the GH5-7?

A: Yes, the autofocus (AF) and image stabilization (IS) in the OM SYSTEM M.Zuiko Digital ED 12-100mm f/4 IS PRO Lens will work when used on Panasonic cameras like the GH5, the GH6, and the GH7. However, if you use the lens' IS, you would need to shut off the camera's IBIS. Please note that Olympus lenses do not support dual IS.

Q: 3. Is a camera battery included in this package?

A: The Amimon CONNEX Outdoor Digital Wireless Video System Kit will not include a battery for power source.

Q: 4. B&H lists this as being new. What are the main differences between this one and the original 12-100?

A: The difference between the OM SYSTEM M.Zuiko Digital ED 12-100mm f/4 IS PRO Lens and the Olympus M.Zuiko Digital ED 12-100mm f/4 IS PRO Lens is the brand name update from Olympus to OM System.

Q: 5. Can the wireless antenna for the receiver be mounted outside of a building, and then run coax cable from antenna to receiver base station that will be inside the building?

A: No. But you can do what you are describing from your audio source or mixer, to the transmitter using XLR signal cable to the transmitter.

Q: 6. Can you use a turntable with Antelope Satori?

A: Unfortunately the Satori is not made to take a turntable. There are no phono pres just mic and line inputs.

Q: 7. Can anyone compare the sound quality of the RS 175 to the Sennheiser HD 450BT wireless bluetooth headphones?

A: After a search, I am not finding much differences in audio. The main difference between the 2 will be the Wireless Connectivity. The 450BT provides Bluetooth to connect wirelessly to any other Bluetooth capable device. The RS 175 operates on Radio Frequency (RF) that interacts wirelessly with the Base. You will need to connect your audio source to the Base to transmit audio to the packaged headphones.

Q: 8. One transmitter to 50 receivers simultaneously according to the specs.With multiple speakers (maybe 8-16) spread out across a fair distance will result in latency issues. Is there a way to tweak individual latency/delay to each speaker/receiver?

A: The Wi Digital X8 does not offer delay compensation. If the application demands it, a delay unit should be connected to the receiver(s) before being inputted to the speaker.

Q: 9. I would like to use 2 sets of RS 175 headphones on 2 different Samsung Smart tv’s. Can I put 1 transmitter on each tv and just move the headphones from set to set? How are the headphones paired with the transmitters? Thanks.

A: Yes, you should be able to do that. Pairing instructions are shown on page 24 of the user guide. https://www.bhphotovideo.com/lit_files/111450.pdf

Q: 10. Can it be plugged directly into an audio mixer to record music?

A: The VocoPro SDR-4 Digital SD Card Recorder Module is compatible only with the VocoPro PA-PRO 900, STAGE-MAN, and MOBILEMAN.