The Countryman Isomax Headset Microphone is the original Countryman head-worn microphone, and a favorite for both speech and performances. The Isomax features a flexible boom for easy positioning, and the sensitive capsule features a wide 20 Hz to 20 kHz frequency response for full, clear audio reproduction.

The Isomax effectively rejects off-axis audio, minimizing feedback and residual noise. The flexible, adjustable band fits snugly and comfortably around the back of the head for concealed use on stage, during trade shows, speeches, sermons, etc.

A wide variety of colors and connectors are available for use with various wireless transmitters. This cardioid version is beige and features a 1/8" (3.5mm) locking-mini connector for use with Sennheiser wireless transmitters.

For Sennheiser Wireless Transmitters    Cardioid Polar Pattern    1/8" (3.5mm) Locking-Mini Connector    Telescoping Boom    High Rejection of Feedback    Beige

A miniature cardioid capsule is mounted to a low-profile, adjustable headband. The Isomax is available in a variety of colors that match different skin tones, so you can select the version that is appropriate for your application.

This version is beige and features a 1/8" (3.5mm) locking-mini connector for use with Sennheiser transmitters.

The moisture-resistant capsule is protected against humidity, sweat, and makeup.

The Isomax is available in omnidirectional, cardioid, and hypercardioid polar patterns. This version features a cardioid pattern that effectively minimizes off-axis noise and feedback while providing a generous pickup area.

Related Questions and Answers

Q: 1. I need a communication system for El Salvador. Does it work for me in the country?

A: That will depend on if the 1920-1930 mhz band is legal to use in El Salvador. We suggest confirming that with your local government before purchasing the units.

Q: 2. Which Remote Headset can I add to the 4-person Headeset (1.9 GHz, USA)? Can I add ONE "Eartec UltraLITE Dual-Ear Remote Headset?

A: You can expand the number of users for the Eartec UL4S 4-Person Full-Duplex Wireless Intercom System by adding the Eartec UltraLITE Single-Ear Remote Headset with Rechargeable Lithium Battery - USA Version (B&H # EAULSR) or the Eartec UltraLITE Dual-Ear Remote Headset with Rechargeable Lithium Battery - USA Version (B&H # EAULDR), The master headset can be used with up to 4 remote headsets. If you need a larger system, you can add the Eartec HUB Mini Duplex Transceiver Base - USA (B&H # EAHUB). The HUB will replace the master headset and it can be used with up to 8 remote headsets and 1 plug-in headset.

Q: 3. Can some confirm if this system can support up to 10 headsets ( 1 wired and 9 wireless)?

A: The maximum with the Eartech Ultralite system using the Hub mini duplex base is a total of only 9 users. Up to 17 users can be hooked with the Eartec HB35IL Interlink Cable for HUB Mini Duplex Transceiver Base, B&H # EAHB35IL and an additional HUB. This involves two wired users connected near each other, and up to 15 wireless stations.

Q: 4. how can you turn off the 2 remote can you stop the remote headsets from blinking blue after turning off the main?

A: The flashing blue LED light on the earcup indicates that the Eartec UltraLITE Remote Headset is in pairing mode, searching for the Eartec UltraLITE Master Headset (or the Eartec HUB Transceiver Base, if using a system with the HUB instead of the Master Headset) to pair with. After turning off power to the Master Headset, press and hold the power button on the Remote Headsets for 4 to 5 seconds to turn them off.

Q: 5. Does this intercom system works well in Mexico? I bough one system without HUB but it had an anoying buzz on Master headset, I had to sent back to the store

A: This product is designed for the USA market only. The radio frequency band is allowed in the USA and may not be in Mexico and may be overlapping on Mexican radio bands.

Q: 6. Suppose two systems are in use in the same location, i.e. a sports events where both teams have the same system. Are the satellite headsets paired with Master?

A: Each group of headsets are made to work within that system. If you have two separate systems and you want to combine them to use them in the same group, you can contact Eartec Tech Support and they will be able to help you get both systems into the same group. Eartec is available for direct contact by phone and email on the following page. https://eartec.com/about/

Q: 7. Can we link hubs to extend the range of the network? We use this system in theatres but would like extended coverage for backstage areas.

A: Unfortunately hubs cannot be linked to extend range. Only one hub per system is permitted.

Q: 8. Is there a way to use the 2.5 / 3.5 mm plug-in, as a way to connect a phone? Or feed program audio into the intercom?

A: No, the 2.5-3.5mm jack on the HUB is for connecting a wired headset such as the Eartec Max 4G Single Headset with Dual 2.5-3.5mm Connectors (B&H #EAHUBMXS).

Q: 9. I am buying from the Philippines, do you have a multi voltage charger?

A: The charger that came with the unit has a power supply with an input of 100-240v, 50/60Hz 0.5A.

Q: 10. can I have two system 0f 6 headset to make a total of 12 headset in the same crew work area and every body can communicate in the room?

A: You can expand an existing Eartec HUB system by adding a second HUB Mini Duplex Transceiver Base (B&H # EAHUB) to your original Eartec system. The second HUB will allow you to add up to eight wireless UltraLITE headsets and all headsets connected to each HUBs will be able to communicate with each other.