Lavalier Microphone

The Shure SM Microphones Series SM-11 is a miniature dynamic lavalier microphone designed for use in television broadcasting, sound reinforcement, certain radio and motion picture applications, and similar uses where a small, professional-quality microphone is required. The SM 11 has an omnidirectional pickup pattern, and its frequency response is optimized for lavalier use. The microphone is supplied with a tie clasp assembly, tie tack assembly, connector belt clip, and zippered carrying bag.

→ Acoustically matches most stand- or desk-mounted microphones
→ Small and lightweight for unobtrusive, virtually unseen operation
→ Smooth exterior and recessed grille screen minimize clothing noise
→ Rugged aluminum case construction
→ Extremely flexible long-life cable
→ Two mounting options, tie clasp or tie tack
→ Convenient, secure belt clip attaches connector to belt or clothing

Type	Dynamic
Frequency Response	50 to 15,000 Hz
Polar Pattern	Omnidirectional
Impedance	Microphone rating impedance is 150 ohms (200 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms
Output Level (at 1,000 Hz)	Open Circuit Voltage; –64 dBV/Pa (0.60 mV); (1 Pa = 94 dB SPL)
Polarity	Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Hum Pickup	35 dB equivalent SPL in a 1 millioersted field
Cable	Non-detachable, 1.2 m (48 in.), two-conductor, shielded, plastic-covered
Connector	Professional three-pin audio (XLR)
Net Weight	7.9 grams (0.28 oz), less cable and connector