Meritline offers the refurbished Grace Digital Eco Extreme Speaker Case
in Black, model no. AQCSE101, for $19.99
with free shipping
. Outside the price below, that's the lowest total price we could find for a refurbished unit by $10. This waterproof, floating, and dustproof case is compatible with most MP3 players and smartphones. It features a 3" full-range speaker, carabiner clip, and up to 30 hours of playback.
Note that no warranty is provided. A close price, backed by a 1-year Grace Digital warranty: PricePlunge
has it in six colors for $15.99 plus $4.99 for shipping.