Battery: Removable lithium-ion battery for optimal durability Features: 6 groups and 32 wireless channels to avoid interference Smooth Operation: User-friendly menu and multi-select control pad for quick adjustments Wireless Connectivity: Enhanced performance and wireless connectivity up to 985 feet (300m) Compatibility: Universal compatibility with many Canon, Nikon, Sony (with included adapter), Fuji, Panasonic Lumix, and Olympus cameras