Neewer I-TLL Master/Slave Camera Flash for Nikon ~Master Wireless Control~High Speed Sync Speedlite D4S D4 D3S D800 D700 D80 D90 D7000 D7100 D50 D40X D60 D5000 D5100 D5200 D5300 D40 D3000 D3100 D3200 D3300 Digital SLR Cameras NW982N-II Powerful Flash with High Guide No.58(ISO 100, 180mm). High-speed sync up to 1/8000th of a second. Ultra-fast 2.9 second full-discharge recycle time. Flash Mode: TTL, M, Multi, FEB, Master, Slave, S1, S2 The wirelss trigger: Wireless induction flash lighting Powered by 4 pcs AA alkaline cell or AA NI-MH battery. Large-size LCD display. The speedlite is equipped with large-size LCD screen, with clear and intuitive view.