Adjustable Antennapage 31USB Connector (behind antenna)page 20Locking Ring(on bottom foot)page 30Configuration/Channel 1Configuration/Channel 2Power Offpage 11, 22TEST/LEARN Buttonpage 24Zone Selectorpage 14Lanyard Looppage 301/4-20 mount(on bottom)page 30Battery Compartment(2 AA [IEC:LR6])page 6Canon-styleHot Shoe withPass Throughpage 12Remote Studio or otherflash Triggering Portpage 17Remote Camera Triggering Portpage 26Status LEDpage 29FlexTT5™9