AKG LC 617 MD Black, Condenser minilavalier microphone, Linear frequency response, Effective suppression of interference by mobile phones, etc., Characteristics: Omnidirectional, Frequency range: 20 - 20000 Hz, Transmission factor: 7 mV / Pa, Boundary sound pressure level: 115 dB, Impedance: 200 ohms, MicroDot connection, Dimensions capsule: 19 x 8.5 mm, Weight: 5.3 g (including cable), Colour: Black, Includes 3-pin TQG adapter suitable for AKG radio systems