The Raytalk RAN-1000A-D-RCA Double-Sided Noise Cancelling Headset comes with two TAF5 connectors, which can matched with a pair of radio cables to connect dual devices. A single PTT is provided for each radio connection. An RCA connector is also supplied to connect a listen-only source. The Raytalk RAN-1000A-D-RCA Double-Sided Noise Cancelling Headset features two TA5 connectors, which can be paired with a radio cable to connect a single unit per side. There is a single PTT button on each headset cup for activating the device. The microphone boom arm can be rotated to allow the headset to be worn on either the left or right side. An RCA connector is also supplied to connect a secondary listen-only source. Matching radio curly cables can be found here; https://shop.d2n.com.au/collections/raytalk-cables Headset bag can be found here; https://shop.d2n.com.au/products/raytalk-asp-11