Probably not compatible with the Playstation 2. What you probably have is a PS/2 mic(judging from the Motorola brand you mentioned), which is only compatible with PCs.
[quote name='tangytangerine']Probably not compatible with the Playstation 2. What you probably have is a PS/2 mic(judging from the Motorola brand you mentioned), which is only compatible with PCs.[/quote]