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£29.00 Free shipping above £179

Add the optional rechargeable lithium battery to the ART speakers to have up to 8 hours of play back without power cords. Make the CUBE or SPHERA portable and move it from your office to your kitchen, or hang the ART Speaker on the wall like a painting without wires to hide.

Charge the battery right in the unit with no need for a dock or charging station. Free yourself from pesky wires.

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Tech Specs


  • 6.6 x 3.7 x 1.9 cm / .1 kg

In the Box

  • (1) Battery pack
  • (1) User guide


  • Add to CUBE or SPHERA Wi-Fi speakers to make portable
  • Up to 8 hours of playback
  • Recharge right in the speaker
  • Easy to install


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