W WINBRIDGE M900 Loudspeaker, Hands-Free Portable Loudspeaker, Small, IPX6 Waterproof, High Output 25W, Music Playback, Wired Microphone, USB Rechargeable, Supports Loudspeaking, Music Playback, SD Card, USB Driver, AUX Input, Loop Play, Meetings, Beaches, Promotional Activities, Briefings, Outdoor Activities, Yoga Classroom and More