Aputure Wireless Gigtube II Remote Trigger Cable Release with LCD Display for Nikon D3x, D3s, D3, D4, D300s, D90, D3100, D3200, D5100, D5200, D7000, D7100 2.4 Ghz wireless digital-signal transfer technology New mini-cam technology that can monitor 4 cameras at once Video start & stop control, built-in memory & playback, sleep mode & long lasting battery power 3.5" TFT LCD Viewscreen, 16M color definition, 320x240 resolution Includes a 24 month manufacturer warranty