Strobe body only No diffuser Unknown manufacturer, with YS adapter and knob Panasonic nickel-metal hydride batteries, 2021 manufacture, 4 pieces No other accessories Instruction manual included Original box included No history of water damage or repair Functioned normally until last week Used for a total of 50 dives, with scratches on the exterior Compatible with underwater light remote function "RC" for 2-strobe TTL system and slave firing