The beige Sanken COS-11D Lavalier Mic for Lectrosonics Transmittersfor Lectrosonics Transmitters is a subminiature lav microphone designed to deliver clear, full-bodied sound and reliable performance, making it a popular choice among industry professionals in broadcast, TV, theater, film, videography, and more. 

Engineered to meet the standards of modern digital wireless microphone systems, the COS-11D is RF shielded to eliminate interference issues and ensure a pristine audio signal. The microphone capsule features a rectangular design that sits vertically, increasing the surface area and allowing this tiny mic to offer a rich, full sound that outperforms many larger models.

The mic's 50 Hz to 20 kHz frequency response rolls off the extreme low end and provides accurate, transparent audio reproduction with a small presence boost in the 6 kHz area for crisp, intelligible speech. With a forgiving omnidirectional polar pattern that picks up sound in a 360° pattern, levels stay consistent, even when the subject turns away from the mic.

A water-resistant mesh screen protects against humidity, perspiration, makeup, bad weather, and other potential on-location issues, while the durable cable is also moisture resistant and built to stay soft and pliable, even after extended use. This version of the COS-11D terminates in a 3-pin LEMO connector and is wired for use with Lectrosonics transmitters. A metal windscreen, holder clip, rubber mount, and plastic case are included.

For Broadcast, Film/Video & Presentation    Omnidirectional for Consistent Levels    For Lectrosonics Transmitters with LEMO    -9 dB Reduced Sensitivity Level    Rugged 5.9' Cable Stays Pliable    RF Shielded for Digital Wireless    Water Resistant    Small Size is Easy to Conceal    Requires 3 to 10 VDC    Includes Windscreen, Mount & Clip

• Lectrosonics bodypack transmitters and recorders equipped with a 3-pin LEMO connector, including the SSM.
• Third-party wireless transmitters and portable audio recorders equipped to supply 3 to 10 VDC through a 3-pin LEMO connector wired for Lectrosonics compatibility.

Related Questions and Answers

Q: 1. could you please tell me what sanken I should buy for my Sennheiser G4 ?

A: This particular Sanken COS-11D Omni Lavalier Microphone (B&H # SAC11WNSETRB) is compatible for use with a Sennheiser G4 series wireless transmitter and so are all of the other versions that are linked on the same item page. The information in the product name for the compatible versions of the COS-11D will always specify that the mic has a 3.5mm locking connector for Sennheiser.

Q: 2. i think if you dont have now this mic, you have to delete selling list. this is very uncomfortable..?

A: This version of the COS-11D for Sony wireless transmitters is available by special order only. We do not have it available in stock.

Q: 3. Is this wired for Servo Bias or Universal?

A: Just kidding. I can't read......

Q: 4. What is the warranty length? Cant seem to find that info

A: This product has a one year, limited manufacturer's warranty.

Q: 5. There are many options of Sanken COS-11D, but I still can't find the right one! Which model can be connected to Rode Wireless Go? Please let me know the product BH#

A: Unfortunately Sanken doesn't make a specific model for the Rode Wireless Go. If you want a better quality mic option for the Rode Wireless Go, I would recommend BH #COMEMWSFF05B.

Q: 6. Would this work plugged into a zoom H1 or the RDELink wireless set? They have versions for each specific transmitter, but wondering how compatible the mic is.

A: Unfortunately this mic is not compatible with the RodeLink wireless system. In addition using the mic with devices other than the specified Sennheiser wireless transmitter is not guaranteed to operate and not recommended. Sanken does not currently offer a mic designed to be used with portable digital recorders via 3.5mm jack.

Q: 7. Will this work with a Sennheiser G3 receiver/transmitter set?

A: Yes. This mic will work with the Sennheisser G3.

Q: 8. hi i bought this one, and i wonder this mic work with sony d11 or d21 without pantom power

A: This Sanken COS-11D is designed to work with a Sony wireless bodypack transmitter. The mic requires 3 to 10V plug-in power which will be supplied by the transmitter. It will work with the UWP-D11 and D21 wireless systems.

Q: 9. Battery mount to 1/4

A: This microphone requires 48v Phantom Power. You would need to use an active XLR adapter, of which there are many to choose from, or a simple Phantom Power Supply. https://www.bhphotovideo.com/c/product/577469-REG/PSC_FPSC0001_48_PHantom_Single.html

Q: 10. Which Sanken COS-11D to get for use with a Rodelink Filmaker?

A: This model Sanken COS- 11D will work with the Rode Fimmaker Kit wireless transmitter. The models with "Sennheiser locking 3.5mm connection" are appropriate.