2 X 357 SR44W EPX76 Compatible Batteries suitable for LEICA R3 R4 R5 R6 R7 MOT Cameras. Generally used to power the internal focus guide in the eyepiece as well as other camera information which varies by Camera As Pictured, these are new in blister packs, to be sure you are getting the best available product. We will supply quality Silver Oxide batteries from Swiss or Japanese brands, to provide the required voltage stability not found in the cheaper alkaline chemistry on offer. We do not supply or recommend Alkaline LR44 or AG13 for valuable equipment , hence our prices may seem to be higher, but you will get the best quality available Silver Oxide as recommended by the manufacturers.