Description: Batteries NOT Included with this Product! Camera uses (4) AA Batteries The SB-105 UW TTL Speedlight Set is an affordable underwater flash unit designed for use with the Nikonos V. Automatic through-the-lens (TTL) flash control assures perfect exposures. The Flash comes complete with Mounting Bracket which when used with the camera provides a handy and steadying grip system. Also included is the underwater sync cord, O-ring set, and MS-5 Battery holder.Catalog Number: 541980264