AODELAN TTL Flash Trigger for Nikon DSLR & Mirrorless Cameras - 1/8000s High-Speed Sync HSS - Compatible with Profoto A1, D2, Pro-10, B10 - Replacement for Profoto Air Remote TTL - Perfect for Studio Photography, Portrait Shooting & Outdoor Flash Photography

First off, let's talk tech. The E4 operates on the 2.4 GHz frequency, giving you an impressive range of up to 200 meters (that's 656 feet!) for triggering your trusty Profoto flashes. It's not just about distance; you can also control your flashes remotely and use TTL functions up to 100 meters (around 330 feet) away. Talk about freedom to roam!With 8 channels (numbered 1 to 8) and the ability to control 3 groups (A, B, and C) per channel, you've got plenty of room for creativity, no matter how intricate your lighting setup. Also, it's a breeze to keep this transmitter going with just 2 AAA batteries. No need to fret about running out of juice during those extended shoots.Now, here's the cool part: the E4 offers two shooting modes. There's TTL, where the camera takes care of exposure, and there's Manual mode, giving you full control. So, whether you're a seasoned pro or just getting started, you're covered. This transmitter supports high-speed sync, allowing you to capture shots at speeds of up to 1/8000s. That means you can freeze fast-moving action or manipulate ambient light like a photography wizard.The E4 is compact and lightweight, making it super easy to handle. AODELAN even throws in a handy strap, so you can carry it around without a fuss. And for all you Nikon users out there, here's a little secret: the E4 supports two sync selections, 1st and 2nd. To unlock high-speed sync, just toggle on Auto FP mode in your camera menu.