Attach this small unit to your Olympus cameras hot shoe to wirelessly integrate your Profit AirTV Flash with your camera. In TTL Mode, you just point and shoot and the Air Remote TTL-S will communicate with the flash to automatically give you a perfect exposure. It is as easy as it sounds. For more precise control, switch to Hybrid Mode. This allows you to first shoot with TTL to get a technically perfect exposure and then switch to Manual Mode with the same readings and settings and do whatever creative adjustments you feel like doing. It is a huge time saver. Plus you can leave that light meter at home! Comes with patent-pending Profit High-speed Sync technology faster, more powerful and more consistent than any other HSS solution on the market.