Benifits description: 
1) 2x Balanced audio input at the transmitter side (XLR Female)
2) 2x Balanced audio output at the receiver side (XLR Male)
3) 1x FC/SC/ST connector

Features:   
1) Transmit several audios over one fiber.
2) Support Frequency Response from 10 Hz to 44.1kHz @±3dB.
3) LED indicators.
4) Supports hot swapping and hot plugging.

Description:

2 Channel Balanced Audio over Fiber Extender with xlr Connector support 2 Channel of 16-bit digitally encoded broadcast quality balance audio over one multi-mode or single-mode optical fiber. These fiber optic transmitter and fiber optic receiver are typically used in applications for Rental, Staging, Theater, Stadiums, Theme Parks, Broadcast/Studio, CCTV audio and Professional AV applications, etc, and are available for stand-alone or rack-mount installations. FC, ST or SC optical connectors is optional.