DPA 4166-OC-F-F03-LH, Dual-Ear Headset Microphone, Directional characteristic: Omnidirectional, Frequency range: 20 to 20,000 Hz, Max. SPL (sound pressure level): 144 dB, Very secure and comfortable to wear thanks to the self-adjusting earset, Boom length: 110 mm, Detachable cable, 3-Pin LEMO connector suitable for Sennheiser Wireless System, Dimensions: 9.5 x 5.3 x 2.9 mm, Weight: 8.5 g, Colour: Beige