GS-TRRS is an audio interface for connecting a mobile phone to studio or newsroom systems through the analogue TRRS connector. It converts the audio system line output to a microphone-level feed for the phone, while returning the phone audio as stereo line-level audio.

• Compatible with Apple and Android phones via selectable TRRS wiring.
• Balanced and unbalanced stereo inputs and outputs in parallel.
• Front-panel level controls for audio to and from the phone.
• Front-panel PPM metering for audio returned from the phone.
• Four USB charging ports for connected phones.