Designed for recording interviews, the OLM-20 Dual Omnidirectional Lavalier Microphone from Polsen is comprised of two of the well-received OLM-10 omnidirectional lavalier microphones. It terminates in a single 1/8" stereo connector, with each microphone recording to a discrete channel on your DSLR, camcorder, or audio recorder with a microphone input. Not limited to just interview applications, the OLM-20 can be used for presentations, podcasts, webcasts, or any situation where more than one subject needs to be recorded.

The OLM-20's dual electret condenser capsules are designed to deliver clear and natural sound, with their omnidirectional polar pattern providing off-axis response, even if the subject turns their head while talking. Both mics offer low sensitivity to wind and handling noise, as well as vocal plosives.

Thanks to its battery-operated design, the OLM-20 can be used with any camera or recorder that supports a 1/8" stereo mic level input, without the need for additional equipment or adapters. Each microphone records to a discrete channel, and the microphones themselves are labeled left and right. Its 13.5' cable provides 10' of distance between each microphone for comfortable placement, while the included tie clips allow for hands-free use.

Dual OLM-10 Omnidirectional Mic Capsules    Single 1/8" Stereo Connector    Each Mic Routes to Discrete Channel    Left/Right Channel Indicated on Mics    13.5' Cable with 10' Between Mics    Battery Powered    Works with Most 1/8" Recording Devices    Includes 2 Tie Clips & Foam Windscreens    Includes LR44 Battery

The omnidirectional polar pattern provides excellent off-axis response, even if a subject turns their head while speaking

Compatible with DSLR cameras, camcorders, and most devices with a 1/8" (3.5mm) mic-level input

The OLM-20's design sends each microphone to a discreet channel without need for extra adapter or mixer

Each microphone offers low sensitivity to wind, handling noise, and vocal plosives

The 13.5' cable provides 10' of distance between each mic, 1' of distance between its battery box and stopper, and 2.5' of distance from the battery box to its 1/8" (3.5mm) connector

The OLM-20 is powered by a 1.5 V button cell battery (included) and does not require external power for operation. The power switch conserves battery life

The included tie clips allow for hands-free operation while the windscreens help ensure quiet, professional-quality recordings

Related Questions and Answers

Q: 1. I just received this mic and i thought I was two separate mics. they are both on the same cable. how are they used?

A: They are designed to be used simultaneously - for example, it is a handy solution for recording two people in an interview setting.

Q: 2. I am looking for an inexpensive option for binaural recording and these mics look like just the thing. I just need to know, does each mic have two channels (ie, it's own l and r channel) or do each mic function as one channel each when recorded on a dslr?

A: Each mic goes to a difference channel and is separate. However, I don't recommend these for binaural recording, which requires greater sensitivity to be successful. These are very cheap mics and the battery system is clunky. I wish this system was executed in a better quality system but unfortunately it is not. There are better choices for binaural recording.

Q: 3. Can it work with Zoom H5n?

A: Yes it's comparable with the Zoom H5N, however you will need a 3.5mm to XLR adapter in order make the connection into channel 1 and channel 2, you can use the adapter in the link bellow. https://www.bhphotovideo.com/c/product/387850-REG/Rode_VXLR_VXLR_Mono_Mini_Jack.html?sts=pi&pim=Y

Q: 4. If I add a ten foot cable to this for longer distances. Will this negatively affect the audio?

A: No. It will not affect the audio negatively.

Q: 5. does the mic work without the batteries with a recorder?

A: Unfortunately no. The battery in this microphone is required to power the microphone.

Q: 6. I like the idea of having two mics for interviews, but will only need one mic most of the time. Can I deactivate one mic so I have clean sound?

A: You are able to use only one mic for interviews however the mics are not able to be individually deactivated.

Q: 7. how long are cables ? 13.5 ? 10 between mics ?? people should be one on the other NO ?

A: HelloHelloFrom the 1/8 plug you have 4'-0 to a molded stop on the cable , from the stop to the microphone each cable is 10'-0 . So I the perfect world you can separate the microphones 20' but you would only be 4' off the plain. I have a 10' headphone extension cable works great! Gives me 14' to the molded stop. CheersMike

Q: 8. I'd like to connect these to a xlr snake that goes to an audio mixer. What adapter would i need?

A: All you will need in order to connect it to your snake is a 3.5mm female to XLR male see one option in the link bellow https://www.bhphotovideo.com/c/product/387850-REG/Rode_VXLR_VXLR_Mono_Mini_Jack.html?sts=pi&pim=Y

Q: 9. For staff - Can I use the dual lav with my Panasonic Lumix G7 directly? Can I use the dual lav with this adaptor ( a href= http://www.bhphotovideo.com/c/product/985832-REG/kopul_a_xmmf_adapter_xlr_male.html target= _blank http://www.bhphotovideo.com/c/product/985832-REG/kopul_a_xmmf_adapter_xlr_male.html/a ) to my Tascam DR-40? (there an issue going into one XLR on this recorded? Thanks so much!

A: The OLM-20 is directly compatible with the Lumix G7 and will record both mics discreetly to left and right sides. It can be used with the Kopul adapter as well, however will combine both sides to single mono signal when connected to the recorder.

Q: 10. does it work with panasonic hc 900?

A: There is no audio nor out on the camera. The only port is a micro USB. I don't believe it will do anything other than allow you to transfer images, and charge the battery.