The Elinchrom Skyport Mk II USB Transceiver is compatible with both Windows and Mac Operating Systems. It is used in conjunction with Elinchrom’s EL-Skyport Software 3.0 for complete wireless remote control of RX and ELC strobes.The transceiver can wirelessly control the flash power, modelling lamp, flash sync, trigger groups and more for any RX or ELC flash unit.Consistent, reliable communication is delivered through the utilisation of 8 frequency channels and the incorporation of 40-bit security encryption. This greatly reduces the risk of interference and allows a triggering range of up to 50m indoors or 120m line-of-sight. If required, a flexible swivel antenna can be adjusted to maximise the signal strength in difficult shooting conditions.For your convenience, the Elinchrom Skyport USB Transceiver RX MK II is plug-and-play compatible to ensure hassle-free set up and uses USB power, thereby eliminating the need to replace batteries.