8 Channels,you can control specific unit or serveal flash units at the same time.Receiver units have a maxium range of 200m, max sync speed of 1/250s.8 different channels let you trigger only chosen specific receivers, or an "all channels" button will trigger all receivers simultaneously.The rotating Transmitter can be used upright or in the low-profile down position. | 2.4 GHz frequency provides reduced radio interference and an extended range without the need for line-of-sight alignment as the radio waves will pass through some walls, windows, and floors. | Compatible with Canon SpeedLite: 600EXII-RT, 600EX, 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX, 430EZ, 420EX, 420EZ, 380EX;Nikon SpeedLight SB-900,SB-910,SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24. Olympus FL-50R, FL36R; Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT | AODELAN FT-8 Transmitter work with all cameras with stand hot shoe mount and cameras with 3.5mm port.It also features a ¼" tripod thread for connecting your flash to a light stand or any device with a ¼" mounting screw.An included 3.5 to 3.5mm sync cable connects the trigger to a studio flash. A 3.5mm to PC plug adapter is also included for flashes with a 1/4" mono plug socket. | Parcel includes: Transmitter x 1, Receiver x 1, 3.5 to 3.5mm sync cable x 1, 3.5mm to PC plug cable x 1, 1/4" mono plug socket x 1, Lanyards x2, Carrying pouch x 1