The gray 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. Does anyone have experience using the Sanken COS-11D with 3.5mm Locking Sennheiser Connector with the Rode VXLR Pro adapter?

A: The Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector can run off of 3 to 10 V, and the Rode VXLR Pro provides 4 V, so the two would be compatible.

Q: 2. Do Sanken COS-11D for Sennheiser Evo work with other Wireless Transmitters like SONY, Lectrosonics etc.?

A: The 3.5mm connector for Sennheiser will not work with SONY or Lectrosonics- the connector wiring is different for these, so the connector would need to be re-wired to work.

Q: 3. Does this mic require phantom power to be on?

A: The Sanken COS-11D Lavalier Microphone requires 3 to 10V of DC power which is typically considered plug-in power. However, depending on the type of connector that is used for the mic and the device it is connecting to, phantom power may be used with along with a power converter to bring the voltage down from 48V to the appropriate amount of plug-in power.

Q: 4. Have TASCAM DR-10 -- Will this work and what is the name of the locking connector I need?

A: This Sanken COS-11D microphone comes with a 1/8 TRS locking connector (it screws onto the wireless transmitter so it stays secure). It is advertised for the Sennheiser G3 transmitters but looking at the Tascam DR-10 it appears to have the same 1/8 TRS plug, so it should work fine.

Q: 5. Has anyone used it with the new RODE Wireless Go system? I am wondering if it would work and if there would be any loss in the quality of the sound compared with the Sennheiser systems...

A: You can use a COS11-D with the Rode Wireless Go system, but you will need a version of the mic with a standard non-locking 3.5mm TRS connector, as the transmitter for the Wireless Go does not use the same locking connector that Sennheiser and the other Rode wireless systems such as the Filmmaker Kit require. The Wireless Go is designed with standard 3.5mm connectors on the transmitter's mic input and receiver output, and intended to be very easy to use for general consumers.

Q: 6. Will this work with the Rode Wireless Pro?

A: The Rode Wireless Pro transmitter provides 3.3V of plug-in power and the Sanken COS-11D requires at least 3V to operate. The Rode Wireless Pro transmitter mic input is also compatible with 1/8'' TRS Sennheiser style connectors. In light of this, the Sanken COS-11D with 1/8'' TRS Sennheiser style connector will work with the Rode Wireless Pro system.

Q: 7. this model work with lectro ssm,right?

A: Yes it will.

Q: 8. 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: 9. Is this compatible with Sennheiser G4 ew100 ?

A: No, this version of the Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Connector is compatible only with Sony Wireless Bodypack Transmitters. For the same microphone but wired for compatibility with the Sennheiser SK 100 G4 Wireless Bodypack Transmitter that is included with the ew 100 ENG G4 Camera-Mount Wireless Combo Microphone System, you will need the Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector - with Accessories, Gray (B&H # SAC11WNSETRG).

Q: 10. Will the Sanken COS-11D work with the DJI mic 2?

A: The Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & 3.5mm Locking Sennheiser Connector is not compatible with the DJI Mic 2 Transmitter/Recorder.