[Battery] Received mike, obviously previously opened, both aaa batteries were dead. I had no time for a return as I needed it for the next day. Microphone performed flawlessly.

[Black] I have about 15 different microphones. For the last 20+ years, I've used an Audio-Technica 822 as an external mic for at least 4 different camcorders. I like it a lot! But the form factor just wasn't good for shooting video with my DSLR. Unless it was rigged forward or to the side, the cable hit me in the head while looking through the EVF. I tried a couple Polsen mics but the AT822 spoiled me for quality. The Sennheiser MKE 440 is a completely different story. Not only does it match the quality of the AT822, but it surpasses it functionally in several significant ways. First of all it sits nicely on the camera's hot shoe without extending backward, letting me use the EVF. The coil cord has nice length and flexibility, and hopefully will prove durable since it's hard wired into the mic. The green LED battery indicator is fantastic; the batteries easy to change. Resistance to handling noise is far superior to my old AT822. The low-cut filter works about the same as the AT822 - well, if you need it. As for sound, it's a little strange as you might expect from such an unusual looking form. You get something akin to a focused cone of reception with good rejection of off-axis sound outside the cone. The AT822 has more natural channel separation, but the MKE 440 is close, even while panning away from the source. The MKE 440 comes with three loudness settings where the AT822 only has the one. The low, attenuated setting is dimmer than the AT822 and I don't anticipate using it much. The middle gain setting is much louder than the AT822 and without any significant noise. Outstanding! At the highest gain setting, the 440 transmits a little hiss which disappears into any ambient sound, but not good for a quiet setting unless it's the only way to get an audible signal from a soft subject. There is no phase insynchronicity that I could hear. If you're not using that second audio channel, you should be recording stereo, and this is a great, compact mic to get you started.

[Battery] I have been trying for a long time to find a good on-camera mic that suits my needs. This one is excellent. Most of what I do is filming live music. That means I need a good sounding mic, in this case stereo, with a high SPL level that allows for the loud impact of drums without distortion. This, with the mic level on the MKE 440 set to its lowest setting works great. I did have to buy an adapter cable (about $11), since my camera only has XLR inputs, but that was a very small added expense. The mic uses two AAA batteries, and has a very long life before requiring new ones. The mic attaches very securely via the cold shoe mount. I havent had occasion to use the fur windshield, but I can say that it fits very securely over the microphones.

[End Address] I bought this to use on one of my B cams, in this case a SONY PXW X70. I wanted something compact with a good stereo image and decent rejection to the rear. For me, the MKE 440 fits the bill. I shoot mainly outdoors, my subject being trains and locomotives, ambient sounds, and interviews. First of all, the mic has a very natural, clear sound. I put it on par with my more expensive Audio Technica shotgun and definitely better than the camera's on board mic. Of course, that should go without saying. The rear end rejection is decent for a mic this size and camera handling noise is minimal. Of course if you touch the camera's XLR mic handle you are going to hear it. However, for tripod or normal hand held use of the camera the mic will deliver the audio that you are wanting to shoot. For wind noise reduction I purchased the Windbuster Kit from B&H. It is made specifically for this mic and had a good snug fit. As advertised, it does do a decent job of minimizing wind noise. I was shooting in 15mph winds with the low cut filter enabled. It does not perform as well as my AT shotgun with a RYCOTE dead cat, but it isn't bad either considering it is half the price. Just keep in mind that with the Windbuster on, you will not be able to see the power/lowcut/sensitivity buttons. For me it is easy to forget to turn the mic off, but the saving grace is the long life with the two AA batteries. In short, this mic does the job I want it to without making the small X70 top heavy. Hopefully it will last for years to come.

[End Address] A really solid, wonderful stereo microphone.

[Black] Fantastic mic.  Nice and compact.  Would love to see a lightning connector version for iPhone and iOS.

[Battery] Using a Canon C100 MkII for travel and hand held video. The built-in mic works well, but wanted something with more stereo separation. The MKE 440 with the fur windscreen works very well. Stereo separation is surprisingly good, and the pickup pattern is effective at suppressing out of picture sound. The fur windscreen and LF rolloff filter are quite effective at suppressing wind noise. The mic is very sensitive, so it picks up mechanical focus noise from some of the L Series lenses, but not from an 18-135 f?3.5-5.6 STM. Turns out this little lens is as sharp as the L Series 24-105 f/4.0 except at the outermost edges of the image in FHD that this camera produces. The MKE 440 is very well made with high quality materials. Very happy with it.

[End Address] I won't use this as my only source, but buying it as a deal of the day I am very pleased with the price/performance ratio it offered. It certainly doesn't come close to a boom or lav for interview situations, but does as well or better than most camera mounted solutions I have tried. I bought it primarily for extreme run and gun nat sound , to improve my backup/reference tracks, and to get somewhat usable interview sound for on the street interviews in chaotic situations. Will I always prefer a hyper or shotgun on a boom: yes. Does this cut it for situations where that is not possible? Well, more often than other solutions I have tried. I am considering setting it up on a better shock mount and am looking for an extreme wind solution that exceeds the factory dead cat. Mounted directly on the hot shoe of the camera or rig, it does pick up mechanical noise from my hands on the grips. Surely a function of the compact form factor. I am hoping to find something that helps but doesn't increase the form factor too much...

[Battery] This microphone is amazing and was a huge upgrade from what I had. I am using it to record our high school marching band and the recordings are so accurate and detailed, it’s near perfect. I record on top of press boxes in the open air most of the time where I have to deal with wind and, with the wind muff, it does a great job even without turning on the wind reduction. If there was one thing I wish it did better, it would be in the reproduction of the lower frequencies but that’s getting really picky.

I am using this microphone on the Sony ZV-E10.

[Supercardioid] This mic fits a unique niche as an excellent audio quality mic that is both stereo and shotgun. I use it for high quality music videos all the time, though few reviews mention it for this use. Love the gain settings and the build quality. Could have put the power LED in the back where it's visible, but that's certainly not a deal breaker.