The Sony SRSBTM8/BT Wireless Bluetooth Speaker drops from $99.99 to $49.99 when you add it to your cart at Target. That's the best price by $28 we could find for this portable speaker, which delivers up to 20 hours of playback on four AAA batteries. It's compatible with iPad and iPhone devices and has a 4.5/5 star rating from Target shoppers. Get free shipping by topping your cart up to $50 with the cheapest thing you can find, or pick it up in store for free. Sales tax is charged in most states.