Vertical handle for Sony ILCE-7M2, ILCE-7RM2, ILCE-7SM2 series Contains slots for two Sony NPFW50 battery;Three buttons for custom-assign functions Remaining battery power displayed on cameras LCD monitor Dust and moisture resistant design. weight : 8.82 oz Description Dedicated vertical battery grip for a7M2 and a7RM2 series when shooting vertically. Let's you use up to two batteries to double the battery performance while remaining battery power is displayed on the cameras LCD monitor. Dust and moisture resistant design