Ebay offers Altec Lansing HydraBlast Portable Everything-Proof Speaker for $28.80 (reg $34.91) after code with free shipping.

Apply Code: VIPOUTLETMARCH

Product Description: 
Altec Lansing HydraBlast Mag EverythingProof Speaker. Hit the beach or a pool party with your new Hydra Blast 2.0! Experience the rugged versatility of a waterproof speaker in any setting or weather conditions with submersion capability down to 1 meter for up to 30 minutes. You can fuel your speaker in as little as 4 hours with the USB-C charging port connected to any power outlet and enjoy up to 20 hours of playtime.

• EverthingProof, IP67 & Floats in Water
• Up to 20 hours of playtime
• #MountIT, #ClipIT, #StickIT - Included Speaker Mount, Carabiner, and Built-In Magnet (stick to most metal surfaces)
• Party Sync Connect 100+ Hydra Speakers Together