For a waterproof (to 3-feet immersion) speaker, Sony's SRS-XB32 sounds great. In fact it doesn't sound like an IP67 speaker, which is a high...
IP67 weatherization for pool use; Great sound; especially for a waterproof speaker; Flashy lights; Pairs (stereo) and chains with other Sony speakers
Sonority weakens slightly as the volume increases; Awkward procedure for enabling/disabling Extra Bass mode