The black 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. Accessories are sold separately and are not included with this configuration of the microphone.

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

• 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. Does this work and lock with the Tascam DR-10L?

A: The Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector is not advised for use with the Tascam DR-10L, as it requires 3V of plugin power at a minimum and the DR-10L can only provide 2V.

Q: 2. Can this version be used with the latest MKII version of the Tentacle Track E?

A: The Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector requires at least 3V minimum plugin power. The Tentacle Sync TRACK E Pocket Audio Recorder provides 5V of mic plugin power, making it fully compatible.

Q: 3. Will this work with the Sony UTX transmitters?

A: The one you posted is wired for Sennheiser which is a different wiring. What you are looking for is here a href= https://www.bhphotovideo.com/c/product/671663-REG/Sanken_COS_11D_UWP_BK_COS_11D_Miniature_Omnidirectional_Lavalier.html target= _blank https://www.bhphotovideo.com/c/product/671663-REG/Sanken_COS_11D_UWP_BK_COS_11D_Miniature_Omnidirectional_Lavalier.html/a

Q: 4. Has anyone used this microphone in combination with the Tascam DR-10L's? I am looking to upgrade the microphones provided and this looks like it could be a good option.

A: I have not used this Tascam model with the Sanken COS 11D but have used it with the Tascam DR-40 and other professional recorders. It's a great sounding lav mic and easy to hide.

Q: 5. I read some posts about unstable connection with Sennh EW100. I want to use it with Sennheiser EW100G3 system. Everyone have problems with EW100 or it were just defective?

A: The Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector should work well with Sennheiser transmitter products featuring a 3.5mm locking input connection. We are not aware of any common issues in this scenario and would suspect that perhaps the specific lavalier cable or transmitter input in the described scenario may have become intermittent with use over time.

Q: 6. Hello, what's the difference between this COS-11D and the one with the mini connector ? Both are advertised for use with the Sennheiser EW wireless system, but the mini connector version is more expensive.

A: No accessories will be included with this version.

Q: 7. Will this mic work on the Audio-Technica System 10 bodypacks (with correct connector, of course)?

A: Yes

Q: 8. i need a sanken mic cos11d for senn ew 100 g3 series just wondering the exact microphone?

A: Sanken COS-11D Omni Lavalier Mic, Normal Sens, Hardwired 1/8 TRS Connector for Sennheiser Evolution Wireless Transmitter (with Accessories, Black), is the correct microphone for the Sennheiser ew100 G3.

Q: 9. No, Im sorry let me re-ask my question - I already have a UWP system and want to up grade to a Sony UTX-B40 Wireless Bodypack Transmitter. For one, the UTX series has a dual receiver meaning they can take in 2 frequencies, etc, UWPs need individual receivers for each transmitter, but the UTS series too, use TRS mic inputs, just like the UWP series, which can take the Sanken Cos-11 lavs. What would happen if I connected the TRS connector from the Cos-11D into a Sony UTX-B40 Wireless Bodypack Transmitter? Is the Cos11D exclusively for UWP series TRS connectors? (and Sennheisers?

A: This particular mic will work with the UTX-B40 transmitter. It will not work with Sennheiser.

Q: 10. Does this work with the Track E recorder?

A: Unfortunately we have not tested E Track with this Sanken cos 11 Sennheiser lavalier. You can still purchase and tested for yourself we have a store return until Feb 1 2020