Sony Walkman NWZ-B142 MP3 Player "sink waste" Questions

I have a Sony b152f which fell in water, while i try to shake it accidentally it is switched on ! Will it Work ?? What is the cost of the Battery ?? Unfortunately if the Walkman is not serviced within

waste your days with thinking When you fall everyone stands Another day and you've had your fill of sinking With the life held in your Hands are shaking cold These hands are meant to hold Speak to me,