Altec Lansing Mini Lifejacket Waterproof Wireless Speaker The rubber case on this Altec Lansing Mini Lifejacket Waterproof Wireless Speaker ($80) allows it to float instead of sink, so that you'll never lose it in deep water. Image Source: shop.nordstrom.com Altec Lansing Mini Lifejacket Waterproof Wireless Speaker $80 from shop.nordstrom.com Buy Now