Azden 310LT. Type: Stage/performance, Microphone sensitivity: -95 dB, Microphone frequency: 50 - 15000 Hz. Connectivity technology: Wireless, Connector(s): 3.5mm, Operating frequency: 566.125 - 589.875 MHz. Receiver dimensions (WxDxH): 64 x 100 x 27 mm, Receiver weight: 0.19 kg. Colour of product: Black