PocketWizard Plus X Transceiver #801-229 - 2 Pack #12709 801-329Auto-Sensing Transceiver: Easy to use. No settings to make. 10 Channels: 1-4 Classic plus 5-10 low-traffic channels Backlit Channel Dial: Easy to set channels in the dark Internal Antenna: Compact, more rugged design Auto-Relay Mode: Trigger remote camera and flashes simultaneously Transmit Only Mode: Positive operation in large groups Side View Design: Better subject view on camera PocketWizard reliability: PocketWizard compatibility $196.67Newegg.comDelivery: to Redlands ReportBuy!