-BRAND NEW IN ORIGINAL SEALED PACKAGE -SLAVE MODE SELECTIONS S1,S2,S3,S4 -AUTO PRE FLASH SENSOR -SYNCH THRU AUTO SLAVE OR I.S.O HOT SHOE -TEST LIGHT SWITCH -RED READY LIGHT SWITCH -USES 2AA BATTERIES -H 23/4" , W 1" , L 21/4" -3 YEAR LIMITED WARRANTY This Is A Mini Monster Flash. Pro Bracket included You can also do the following flash fill features with this flash for a professional look on your photos. Kleiner Riese