Is there a battery pack for the Ceres 3.5BT or Ceres 4.5BT speakers?
Ceres 3.5BT and Ceres 4.5BT speakers incorporate professional-caliber power amplifiers to produce clear, full bass and high-quality sound. Power amps of this sort require more power than portable batteries can deliver, so the Ceres 3.5BT and Ceres 4.5BT speakers use AC power.
Dec 22, 2020