Olympus KP-13 (145163) USB Adapter for RS-27 & RS-31 Foot Pedals / Transcription / Transcription Accessories - DictationOne.com
Amazon.com: Digital Camera External Microphone Compatible with Olympus OM-D E-M5 Mark III Digital Camera, XM-AD2 Dual Channel XLR-Mini Audio Adapter for DSLR's, Camcorders and Pro Video Cameras : Electronics