ECS Curly Cord Compatible with Philips SpeechMike Premium and SpeechMike III ECS 510310928611 USB Type A Curly Cord Cable to USB Mini A Philips Proprietary Connector for SpeechMike. USB curly cord Type A with locking male latch connector to Mini A USB Philips proprietary connector with lock. USB curly cord is used for connecting the SpeechMike Premium or SpeechMike III USB Microphones to a PC. Philips SpeechMike Premium compatibility list: Philips LFH3500 SpeechMike Premium USB Dictation Microphone, Philips LFH3510 SpeechMike Premium USB Dictation Microphone, Philips LFH3600 SpeechMike Premium USB Dictation Microphone, Philips LFH3610 SpeechMike Premium USB Dictation Microphone