Sony ECM-W5: 32-Bit Float via MI Shoe, 64GB Backup, Timecode at $399

Sony's ECM-W5 wireless microphone system ships with two transmitters and one receiver, priced at $399.99. The receiver passes 32-bit float audio over the MI Shoe connection directly into the camera file, with 96kHz high-resolution audio supported on compatible bodies. Each transmitter records an internal backup to up to 64GB of storage, and the system supports timecode and up to four channels.