The equipment used:

Electric diving pumps - russian mark ВЗПЭ,

designed for diving to a depth of up to 20 m. Besides an electric engine, the pumps are equipped with flywheels that can be used in the event of a blackout..

Diver’s helmet, type УВС-50м.

Equipped for communication through a microphone or a speaker.

In addition to that, the weights, a suit, tin boots and hoses.
 

Diving communication type НВТС-М

through which the shore team can talk to the diver and vice versa and two divers under water can talk to each other.
 

All together