I take my e-pen to defend this little box.

Micro static type transistor overhead.
The rail is very partaique, clips a little less.

OVERALL OPINION

I use them as OH (above the mixer head)
For the price (155 couples) are very well trs. They replaced my two Auditechnica (AT1040)
in my drum set ... I have had time to compare two Neumann KSM 184 (10 times high)
I will not go up to say they are as good as two KSM but for use in Overhead Live
THEY ARE ALSO GOOD when a story of breath, not at home anyway.

I think these mics are battery OH and for the price IS NOT PHOTO
(I put 9 / 9 because the 10/10 is reserved for the Schoeps)