Sony ULT FIELD 3 Bluetooth Speaker Powerful Clear Long Battery Shoulder Waterproof Dustproof - Bass, Vocals, 24-Hour Life, Strap, & (SRS-ULT30 BC,

A slim body that can be carried with one hand delivers dynamic, deep bass. Powerful and clear sound Sound field optimization function that automatically adjusts based on ambient noise detection. Durable and safe for use in the bath. Approximately 24 hours of playback