DSLRKIT 8 channel Wireless Studio Flash Trigger AC-08A 6.35mm 1/4" Plug

Do you think 4 channels is not enough?try the new 8 channels trigger with the same price. How to use:
(1) Make sure the channel selector of both transmitter and receiver at same position.
(2) Insert the receiver's trigger output plug into your flash's jack.
(3)Press the test button on your transmitter. The studio light should now flash.
(4)Insert the transmitter's hot shoe socket into your camera's hot shoe jack
(5) if your camera does not have a hot shoe use a PC sync cord and insert into the socket.
(6)You should now be ready to start shooting.

Package Included:
8 Channel Transmitter x1,
AC-08A Receiver x1,
23A battery(Transmitter inside) x1, Sync cord for Transmitter (2.5mm to Male) x1,
6.35mm JACK to 3.5mm Plug PC Sync Adapter x1,
English Instruction Manual x1.