I was using this with a Panasonic camera. Although not pictured, there is a USB charging cord (Type A-C). The Profoto Connect is a button-free, simple transmitter. It seamlessly connects your camera and Profoto strobes, making light shaping easier. The unit has only three setting modes: Auto, Manual, and Off. When set to Auto mode, the TTL automatic flash control function automatically provides the correct exposure just by pressing the camera's shutter button. When set to Manual mode, you can freely adjust the light output with the dial on the strobe unit, or remotely adjust the strobe's light output from the Profoto app. ■ Main Features ・Button-free, simple transmitter compatible with Profoto AirTTL-equipped strobes ・Attaches to the camera's hot shoe for wireless connection between the camera and strobe ・Three setting modes: Auto, Manual, and Off 　Auto mode: TTL automatic flash control mode that provides the correct exposure just by pressing the camera's shutter button 　Manual mode: Mode that allows free manual adjustment of light output ・Small, lightweight, and minimalist design ・Smart connection with the Profoto app (compatible with iPhone 7 and later models) ・Built-in rechargeable lithium polymer battery (lasts up to 30 hours) ■ Main Specifications Synchronization and Control Remote operation from a smartphone: Operable from the Profoto app via Bluetooth connection Profoto AirTTL: Equipped with AirTTL receiver and transmitter Operation modes: Auto / Manual Automatic power off: The power automatically turns off after 60 minutes of inactivity Size: Diameter 45mm, Height 29mm, Weight: 43g