SB-7 speaker for the P-SB7 - offical speaker
Replacement black ball speaker that plugs into PSB7 spirit box.
Weighs only 2 oz. Very lightweight.
Plugs right into the P-SB7. So it is very convenient.
Comes with a USB chord for charging (no battery needed).
Needs to be switched on. On switch is on the side - partially under the black padding material.
Measures 2.25 inch x 2.25 inches (the ball) and is 4.25 inches long when one include the length of the plug in.