If the speaker is powered by battery or rechargeable battery:

• Replace the battery or recharge the rechargeable battery in the speaker

If the speaker is powered by USB:

• Make sure the USB cable is directly connected to the computer

Note: Do not use a hub or USB extension cable. Otherwise, the volume of the speaker might decrease after a short period of time.

The information on this page applies to the following models: SBT75W/00 , SBT75/12 , SPA8210/12 . Click here to show more product numbers  ›