Audio-Technica ATW-2129CS Wireless System – Receiver, Transmitter & Lavalier Mic
Handheld Transmitter Pin 3: MIC INPUT. Accessories Included: Two flexible UHF antennas; AC adapter (country dependent); rack-mount adapters. Four-pin Locking Connector. Audio Output Attenuator (ATTN): Balanced Audio Output Attenuator: Two position switch: 0 / -12 dB.