Float capability is reported by at least one reviewer who observed it floating (notably upside down). This is treated as a practical bonus for pool use rather than a core buying factor.
Some reviews explicitly note flotation for retrieval if dropped into water, but with the common limitation that you should not expect playback while it is floating. It is framed as a safety feature rather than a pool toy.
Float behavior is generally positive, but multiple sources mention practical caveats: audio may not play while floating, sound can change when wet, and it may tip over in the water so the sound does not project as expected.
Float capability is not consistently reported. One source claims it can float, while several others discuss water resistance without mentioning flotation; treat flotation as uncertain rather than a guaranteed feature.