From Manufacturer
the Westcott FJ200 Strobe 3-Light Backpack Kit with FJ-X3s Wireless Trigger for Sony Cameras is a comprehensive assemblage that combines the FJ200 Strobe with accessories that allow you to make the most of the fixture. The kit contains three FJ200 Strobes, each with a battery, charger, tilter bracket, magnetic grid and gel pack, and a 5" reflector. Also included are four USB cables, an FJ-X3 flash trigger, and a Lite Traveler Backpack to carry it all.
The FJ200 Strobe has power, fast response, and the asset of a removable, rechargeable, lithium-ion polymer battery that will give you 450 full-power flashes on a two-hour charge. The FJ200 has a nine-stop power range in 0.1 stop increments and recycles in a fast 0.5 to 1.3 seconds. It is backed by a 1/20,000 peak action-stopping flash duration in Freeze Mode, is capable of 20 fps, and supports High-Speed Sync up to 1/8000 second as well as front and rear curtain sync.
One of the FJ200's exciting features is its TTL option. The flash has an integrated 2.4 GHz receiver that has 16 channels, and 32 groups that with separate purchase of an FJ-X3 trigger will accept TTL signals at distances up to 328' from Canon, Nikon, Sony (with adapter), FUJIFILM, Panasonic Lumix, and Olympus cameras. The flash has a 5/8" receiver to mount on industry-standard light stands, as well as a USB-C port for Windows and Mac firmware updates.