The Yonghuo Digital brand 4 Channel Radio Slave System is designed to trigger a flash with a shoe mount wirelessly.
Four channels offer more than ample capacity to avoid local radio interference, and total freedom from dragging around a sync cord and also provide the opportunity to assign different groupings of lights to their own channel, which can be selected by switching to their respective channel on the transmitter that mounts on the camera's hot shoe.
The transmitter is powered by an included 23A, 12V alkaline battery the receiver is powered by an included CR-2 3 volt lithium battery.The receiver has a 1 1/4" female screw thread on the bottom and accept sub-mini flash cables
| Voltage |
Transmitter: 12V DC (GBA23) Receiver: 3 volt CR-2 lithium battery |
| Dimensions |
Transmitter: 2 x 1.35 x .9" Receiver: 2 x 2 x .9" |
| Weight | Transmitter:.8 oz Receiver 1.7 oz |