C8310 VOLUME CONTROLLER

<ul><li> AXIS C8110 Network Audio Bridge</li><li> AXIS C8210 rear, from the left</li><li> AXIS C1210-E Network Ceiling Speaker</li><li> AXIS C1211-E Network Ceiling Speaker</li><li> AXIS C1510 Network Pendant Speaker</li><li> AXIS C1511 Network Pendant Speaker</li><li> AXIS C1610-VE Network Sound Projector</li></ul>