Color: Tan or black Weight: 18 g Cable' s length: 1.2 m Frequency response: 20 Hz to 20 kHz SPL: max. 130 dB Supply voltage: 1.5 to 10 V Impedance: 1 k© Sensitivity: -42 dB C4SE Connector For SENNHEISER Wireless Microphone Systems SENNHEISER Evolution/ G2, / X2 Digital Wireless Systems