Sony Microphone ECM-TL1. Microphone sensitivity: -35 dB, Microphone frequency: 20 - 20000 Hz, Microphone input impedance: 1.600 Ом. Connectivity technology: Wired, Cable type: OFC, Cable length: 1.5 m. Dimensions (WxDxH): 6.25 x 4.75 x 1.5 mm, Weight: 8 g