JBL Charge 2+, $80 | Multiple colors available.

We love USB battery packs, and we love Bluetooth speakers, so you can only imagine how we feel about the splash-proof JBL Charge 2+, which combines both into a single product. Today only, you can pick one up for an all-time low $80 in several different colors. It even includes a social mode that lets you connect up to three Bluetooth devices at once, and take turns playing songs.