This AUKEY SoundTank Bluetooth Speaker drops from $54.99 to $44.99 to $33.29 when you select "Buy 1, get 26% off - 1 Applicable Promotion" on the product page and redeem the code AUKBTSP4 at Amazon. Shipping starts at $6, but is free using an Amazon Prime membership. Elsewhere, the lowest price we found for this speaker was $48, so even with the shipping added, this is still the best price for one by $9. This Bluetooth 4.1 equipped speaker has a 30-hour battery life and a thick silicone casing for drop protection and water resistance. Note: The discount is only shown during checkout. Sales tax is charged in most states.