The E1-1W2CS131-CS One Wire Earphone Kit for ICOM F3021/4021 2 Way Radios by Otto Engineering is for monitoring audio. It can be used in various environments for applications such as, hotel personnel, events coordinators, retail stores, security at airports, crowd control at conventions, concerts, and more. It features a lightweight earphone, rubber eartip, radio connector and clothing clip in a listen only earphone. Featuring a low-profile, flexible, transparent acoustic tube, built with Kevlar reinforced cables for added strength. The molded 2-way radio connector cable is built of a proprietary alloy of rugged tensile strength. This kit is designed to deliver clear audio that goes unnoticed by others.

For Monitoring Audio    Lightweight Earphone    Includes Rubber Eartip    Includes 2-Way Radio Connector    Clothing Clip    Kevlar Reinforced Cables

Related Questions and Answers

Q: 1. Will this work plugged in to a Macbook Air laptop during a Zoom meeting?

A: The Otto Engineering Listen-Only Earphone Kit with Acoustic Tube (Beige, 3.5mm Mini Plug) can technically be used with a laptop's headphone jack, but it is not intended for this type of use and volume will be very low.

Q: 2. Can you attach a custom fitted earpiece?

A: Not that I know of.

Q: 3. Would these be effective in a car racing environment like watching a formula one race from the grandstands?

A: Yes, the Otto Engineering NoizeBarrier Micro Rechargeable Electronic Earplug Kit could be used in an environment such as Forumula 1 spectating. The NoizeBarrier kit provides between 15 and 40 dB of noise reduction depending on the mode used, while also allowing softer environmental noise to be heard and even amplified.

Q: 4. How does it handle stereo?

A: Volume is a little low. I believe that since I plug it into the earphone jack of a computer, it combines both channels from a stereo feed into one output on the earpiece, rather than randomly choosing only one channel over the other. Sound quality is barely acceptable. With that being said, I use it to listen to my guests as I conduct live or recorded video interviews over the internet and I prefer an earpiece that is not very visible. iPhone earbuds will give you better quality, but are more visible.

Q: 5. How heavy is this product?

A: All items together weigh about 0.4 LBS

Q: 6. What is the impedance of the device?

A: 270 Ohms +30% at 1KHz is the impedance of this earphone.

Q: 7. Does this work with an Audio-Technica AT2005USB?

A: Yes it will work with the headphone output connector on the Audio-Technica AT2005USB.

Q: 8. Hello, can this Otto IFB be used with Sennheiser EK IEM G4 or G3? Thanks

A: Yes. This is compatible with the Sennheiser IEM syatem.

Q: 9. Is this Price for I unit of for 8 units?

A: This is a single unit: Otto Engineering OTTO Connect 210 Wireless 1-Channel Intercom with 8 Talk Slots

Q: 10. How long is the cable?

A: The cable is 4-feet long.