[Wireless Receiver for QPRO Trigger] The QR wireless receiver integrates with for 2.4G Q system, enabling seamless wireless triggering when used with QPRO-C, QPRO-N, and QPRO-S flash triggers (not included), to control multiple flash units all at once for a more sophisticated lighting setup. Note that this single contact receiver only supports manual flash triggering [Standard Hot Shoes with 1/4 inch Thread] Wirelessly trigger your flash by attaching it to the QR receiver's top hot shoe mount (compatible with for V1 V860III SK400II NW700 NW620 NW635II NW600 TT560, etc). Or release the camera shutter by attaching the receiver to the camera's hot shoe mount (compatible with , shutter release cable not included). A bottom 1/4 inch thread allows mounting on a light stand for flexible lighting [Sync Cables Included for Various Monolights] Use the included 2.5mm/3.5mm/6.5mm sync cables and adapter to connect monolights strobes that do not come with the 2.4G Q system, such as VISION 4, S101-300W Pro, S101-400W Pro, ML300, then pair them with a QPRO trigger for wireless control. Compatible with AD200Pro AD400Pro [2.4G Wireless Grouped Control] Stable 2.4GHz connection allows long range flash triggering of 5 groups (A, B, C, D, E), 32 channels, and 99 (01-99) within 328ft/100m. Supports grouped flash synchronization for more versatile lighting control [LCD Display & TEST Button] A clear and high definition LCD display with physical buttons for intuitive uses. Powered by 2 x AA batteries (not included). Colour:black Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 x Wireless Flash Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.