Audio-Technica Condenser Microphone (BP893CLM3TH) The Audio-Technica BP893CLM3 MicroEarset Condenser Headworn Microphone (Beige) features an ergonomic low-profile design that mounts over the ear and yields professional audio results for live performances, broadcast studio applications and more. The BP893CLM3's low-profile and lightweight design allows for hours of continuous use while remaining hidden and comfortable to wear. The capsule features a wide frequency response, detailed sensitivity response and omnidirectional polar pattern for a generous pickup area. The 1" long flexible boom may be easily positioned for optimum results. The BP893CLM3 features a permanently attached 55" (1.4m) long cable with a locking 1/8" (3.5mm) mini connection compatible with Sennheiser wireless bodypack transmitters. The BP893CLM3 is optimized for speech, vocal performances and also fares well as an ear-worn violin / viola microphone. BP893 Omnidirectional Condenser Headworn Microphone, less power module. 1.4 m (55") permanently attached miniature cable terminated for Sennheiser wireless systems using locking 3.5 mm connector. Includes AT8440 cable clip, two AT8157 windscreens, two AT8156 element covers, a moisture guard, and a carrying case. Features: Outstanding clarity and intelligibility Lightweight, ergonomic design Extremely unobtrusive, 1-inch flexible boom Secure over-the-ear placement Extended frequency response for natural vocal reproduction Miniature locking 1/8" (3.5mm) connection compatible with Sennheiser body-pack wireless transmitters UniSteep filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality Specifications: Transducer: Fixed-charge back plate, permanently polarized condenser Polar Pattern: Omnidirectional Frequency Response: 20Hz to 20kHzLow Frequency Roll-Off: 80Hz, 18dB/octave (wired only) Open Circuit Sensitivity: -34 dB (19.9 mV) re 1V at 1 Pa Dynamic Range (Typical): 88dB, 1kHz at Max SPL (wired only) Signal-to-Noise Ratio: 68dB, 1kHz at 1 Pa Maximum Input Sound Level: 114dB SPL, 1kHz at 3% T.H.D. Power Requirements: 11-52V DC, 2mA typical (wired only) Current Consumption: 0.1 mA typical at 5V (wireless only) Output Impedance: 245 ohms (wired only) Output Connector (Power module): Locking 1/8" (3.5mm) Mini Switch: Flat, roll-off (wired only) Voltage Range: 2.5-11V (wireless only) Cable: 55" / 1.4m (Unterminated) Dimensions (LxDiameter): Microphone: 0.32x0.10" / 8.1x2.6mm, Boom: 1.04x0.04" / 26.4x1.02mm, Power module (wired only): 3.84x0.74" / 97.6x18.9mm Weight: Microphone, boom & earpiece: 2.0g / 0.07oz