Sound quality: Kicker's Bullfrog Jump had good sound quality overall. Bass has so so impact, is a bit subdued and lacks deep bass. Midrange is somewhat hazy, a bit grainy and thin. Treble is a bit prominent, sizzly and treble air is lacking. Doesn't do a good job of recovering room ambience and is somewhat congested. Provides a decent volume level in a medium to large sized room and can sound piercing at max volume. No significant difference between Bluetooth and wired sound quality. The speaker is monophonic.
Ease of use: We found the Kicker Bullfrog Jump ease of use to be very good overall. The Bullfrog connecting to Bluetooth is easy. Bluetooth pairing requires a press of the low contrast button which is also the source selection button and then the selection of unit from Bluetooth selection list on source device; unit provides an obvious indication that the unit is in pairing mode, LED light flashes as well as when pairing has actually occurred. Volume controls are in a prominent place but nothing to indicate that it is a volume control except + and - symbols which are low contrast, no index markings but has a visual indicator when you reach the max and min settings. Works with line in, FM and Bluetooth inputs. Source selector is a labeled multi-function button that is low contrast that is not ambiguous and provides a persistent indicator of the selected source. This control also serves as the Bluetooth pairing button.