Profoto B2 Off Camera Flash Head with Attached Coiled Cable Profoto B2 Flash Head with Attached Coiled Cable (Flash Head Only) - Profoto 2 Year Limited Warranty and limitless. On or off-camera flash: The B2 head is small and light enough to be put on a bracket on your camera. Do either that or put it on a monopod or stand. The choice is yours. Both solutions have their advantages but are equally convenient. With TTL: The B2 offers full TTL operation with both Canon and Nikon cameras. Canon shooters attach the Air Remote TTL-C to their camera's hot shoe, Nikon shooters the Air Remote TTL-N. Then point and shoot, and the B2 automatically adjust its light output to provide you with the perfect exposure. It is as easy as it sounds. With portability: The B2 is designed to help you to add a little or a lot of extra light wherever it is needed. The entire B2 kit fits in a bag no larger than your average shoulder bag. Where and how you shoot is all up to you.