TX-500 Discovery Speaker Microphone The TX-500 Discovery Speaker Microphone is a handheld speaker-mic designed specifically for the TX-500 Discovery transceiver. Weather resistant and built for field use, it delivers clear audio with a 3W speaker and includes a PTT switch and 3.5mm external speaker socket — all on a 1m cable with a GX12 6-pin connector for direct connection to the TX-500. Key Features Dedicated speaker microphone for the TX-500 Discovery Weather resistant — suited to portable and outdoor operation 3W speaker for clear audio output PTT switch for push-to-talk operation 3.5mm mono mini-jack socket for external speaker connection 1m cable length for comfortable handheld use GX12 6-pin connector — direct fit to the TX-500 Discovery Technical Specifications Compatible With: TX-500 Discovery Speaker Power: 3W Cable Length: 1m Connector: GX12 6-pin External Speaker: 3.5mm mono mini-jack socket Weather Resistance: Yes PTT Switch: Yes