The gray Sanken COS-11D Lavalier Mic with Sennheiser Connectoris a subminiature lav mic 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 little mic to offer a rich, full sound that outperforms many larger models.

The mic's 50 Hz to 20 kHz frequency response rolls off 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 locking 3.5mm connector and is wired for use with Sennheiser transmitters. A metal windscreen, holder clip, rubber mount, and plastic case are included.

For Broadcast, Film/Video & Presentation    Omnidirectional for Consistent Levels    For Sennheiser Transmitters with 3.5mm    -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

• Sennheiser: Works with Sennheiser bodypack transmitters equipped with a locking 3.5mm connector, including the Evolution (ew), XSW-D, and SpeechLine (SL) Series
• Also works with many third-party wireless transmitters and portable audio recorders that are equipped to supply 3 to 10 VDC through a locking 3.5mm connector wired for Sennheiser compatibility.

Related Questions and Answers

Q: 1. How far can you be from the receiver before the signal starts to drop out?

A: Every situation is different, so it is difficult to say what kind of distance you will get exactly before the RF signal begins to drop off. Given the output power of the transmitter is 10nW, you can expect clear reception within 40-75 feet in an open space, roughly.

Q: 2. Hi, I just ordered this mic a couple weeks ago. So far it has not shown to turn on or record any audio, nor did I receive an instruction manual with it. I have plugged it into my canon 5d mark III and also a Zoom H5 recorder, and both have giving me no sound from the mic and some plug in noise. No levels are shown to record. I have not been able to find any troubleshooting pieces on line. Can you help me?

A: This microphone requires power you need to send it 48V

Q: 3. Can an mkh 30 fit inside of this windshield?

A: Sennheiser MKH 30 Dimensions: ø: 0.98 x L: 5.91" / ø: 25 x L: 150 mm The interior dimensions of the Rycote WS 9 Modular Windshield Kit for Sennheiser MKH8020, 8040 and 8050 Mics BH #RYWS9MXBGMZL, will not accomodate a Sennheiser MKH 30 microphone.

Q: 4. Can be attached an extension to fit longer mics? Thanks

A: There is no extension for this device.

Q: 5. will this hold a sony ecm-673?

A: While the Rycote Standard Hole SGM 18cm Foam Windscreen will work with the diameter of the Sony ECM-673 Short Shotgun Microphone, the windscreen's length will leave less than an inch at the end of the ECM-673 for attaching a shock mount or mic clip. A shorter, more ideal option for the Sony ECM-673 would be the Rycote 104408 10cm Standard Hole SGM Foam (BH #RYSGM10IJ01): https://bhpho.to/3x63G9d

Q: 6. Does it cut down on the High frequencies more than the Sennheiser MKH 416 original windscreen?

A: No HF difference. Foam windscreen is designed to avoid high-frequency roll-off

Q: 7. is this suitable for use with the digital avx wireless systems...ie has it been updated to include better shielding as has the MKE2 gold mics?

A: There are known issue with the shielding.

Q: 8. Does this has extreme wether proof design and RF rejection like NTG3 and Senn MKH416?

A: The Sanken is fairly robust in adverse weather, but it is not weather-proofed. Its directionality is comparable depending on the environment.

Q: 9. Why does the black version look different than the beige one? I've bought the black one before and it looks different. Is it the same mic? wrong image?

A: The actual microphones are the same, but the photo that shows the cable with strain relieve just below the mic seems to be an older version.

Q: 10. will this fit a scheops cmit 5u mic ?

A: The compatible Rycote kit is the: Rycote Windshield Kit 4 - Complete Windshield and Suspension System B&H # RYWSK4