The WMS-PRO + i DSLR wireless system with new interface cable making it compatible with any mobile device with a TRRS jack. Record great wireless audio into your iPhone 3/4/5, iPad/3rd generation and newer, Samsung Galaxy S/3/4, Galaxy Tab 3 and most Android devices. The WR-PRO receiver which comes with both shoe-mount and hook and loop fastener. All receivers and transmitters in the PRO series are on the same 2 frequencies of 169.445MHz and 170.245MHz.