DPA KIT-4060-OP-SMK, Microphone Set, Contains 2 4060 omnidirectional lavalier microphones, 2 DAD 6001 phantom/XLR adapters and various accessories such as 2 BLM 6000 boundary adapters, DMM0007 mount and various clip-on mounts, For attachment to instruments such as:@+Snare drums, trumpets, guitar and bass amplifiers or other sources with sound pressure levels of up to 134 dB, Comes complete in plastic case, Diameter of the lavalier microphone: 5.5 mm, Diameter of the boundary layer mount: 74 mm, Centre height of the boundary layer mount: 6 mm