The Westcott FJ400 II 400W Strobe 2-Light Backpack Set with FJ-X3 M Universal Wireless Trigger offers photographers a versatile and reliable lighting solution. This set includes two FJ400 II flash units, each with 400W power, fast recharge times, and consistent color temperature across a 9-stop range. The flash units feature interchangeable batteries for AC or battery operation, an OLED touchscreen for intuitive settings, and a Creative Mask function to create up to six lighting combinations without repositioning. The FJ-X3 M Trigger provides a universal hot shoe and 2.4GHz wireless connection, compatible with Canon, Nikon, Sony in manual mode, as well as Fuji, Panasonic Lumix, and Olympus cameras. It supports TTL, high-speed sync, and other advanced features with a range of up to 300 meters and a durable lithium-ion battery. A mobile app for iOS and Android allows remote control via Bluetooth, including group assignments and saved lighting scenarios. The included FJ Pro battery extends shooting time with high flash capacity per charge. The set is compact and lightweight, making it ideal for events, weddings, and studio work, ensuring precise and flexible lighting in various environments.