Why does my speaker lose connectivity when more than 5 feet away?

More than likely the speaker's original antenna has grown weaker over time or your device came with antenna out of the box that was not up to par with the quality that it should have been. To fix this issue the back plate of the speaker will have to be removed and the internal parts will need to be accessed. for further assistance with fixing this problem please refer to the guide by using the following link: JBL Flip Bluetooth U.FL Antenna Connector Replacement