The WU 1b has to use a connection via smartphone/tablet/ipad. This is fine as far as it goes, and I have those set-ups. For my hand-held shots (nearly all the time) I use a handle (not a grip) and with a WR T10 transmitter velcroed to it. I use a WR R10 receiver plugged into the camera where the WU 1b goes.. I use the handle and WR T10 because I've had a stroke, and I need to fire the shutter with my left hand. Wired releases work for this set-up, but the wires are a pain since they're all very long. I'm pretty happy with the current arrangement, and if I have to use it off-camera, it's good for a couple of hundred feet.