Thanks @Unnamed for providing the link on Soundcore community. Motion Boom is now available on Amazon for $90 ($10 less than Motion+)
Features:
- Extreme Outdoor Sound: Make a statement with Motion Boom outdoor speaker—press play and experience huge stereo sound that’s distortion-free, even at high volumes.
- 100% Pure Titanium: Motion Boom’s drivers have pure titanium diaphragms to reproduce high frequencies up to 40kHz for sound that has noticeably higher clarity.
- BassUp Technology: Our exclusive technology uses an in-house tuned digital signal processor to analyze and intensify low frequencies in real-time for bass that hits harder.
- IPX7 Waterproof and Floats: Don’t freak out if Motion Boom outdoor speaker goes for a dip! It’s fully waterproof and floats on water.
- 24-Hour Playtime: Motion Boom outdoor speaker delivers up to 24 hours of playtime from a single charge to keep the music playing on camping weekends, days at the beach, boat trips, and more.
- Anker PowerIQ Technology: Charge other devices while you listen.
but expensive 