The RE505X looks identical to the RE603X. In fact, you’d have to check the model number on the back of the device to tell the difference. At 4.9 by 2.9 by 1.8 inches (HWD), it's slightly shorter than ...
SmallRig’s Wireless Tethering Hub dramatically extends camera remote control range to up to 500m, targeting wildlife, action, and remote shooters.