Earset Headworn Microphone

The Shure Microflex Microphone Series MX 153 is a professional subminiature earset microphone ideal for applications in which improved gain before feedback over lavalier microphones is desired. Delivering exceptional speech clarity, the discreet, low-profile MX153 is ideal for corporate presentations, houses of worship, A / V conferencing, and live sound reinforcement.

Available in three color options, the MX-153 provides outstanding clarity in an extremely comfortable over-the-ear design.

→ Subminiature, omnidirectional cartridge offers superior speech clarity and enhanced plosive protection with no proximity effect
→ Terminated with TQG/TA4F connector for direct connectivity to Shure wireless bodypack transmitters
→ Ultra-lightweight, comfortable, flexible design is stable and easy to place over either ear
→ CommShield® Technology guards against interference from cellular RF devices and digital bodypack transmitters
→ Kevlar reinforced, soft flex cable
→ Matte black, tan, and cocoa color options available
→ Includes protective storage pouch, 3 windscreens, and collar clip

Transducer Type	Electret Condenser
Polar Pattern	Omnidirectional
Frequency Response	20 to 20,000 Hz
Output Impedance	N/A
Sensitivity open circuit voltage, @ 1 kHz, typical	-41 dBV/Pa[1] (9 mV/Pa)
Maximum SPL	1 kHz at 1% THD[2]; 2500 O load= 107 dB SPL; 1000 O load= 107 dB SPL
Signal-To-Noise Ratio[3]	60 dB
Dynamic Range @ 1 kHz	2500 O load= 73 dB; 1000 O load= 73 dB
Self Noise equivalent SPL, A-weighted, typical	34 dB
Common Mode Rejection 20 to 20,000 Hz	N/A
Operating Temperature Range	-18°C (0°F) to 57°C (135°F)
Polarity	Positive pressure on diaphragm produces negative voltage on pin 3 with respect to pin 1
Power Requirements	1–5 V DC (500 mA max.)
Weight	19.76 g

[1] 1 Pa=94 dB SPL
[2] THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
[3] S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted