Prime Plug-In BT Diffuser Bundle

Its a great product but it needs to be designed so that the plug part can swivel to plug into horizontal outlets but remain upright. If it is tipped to its side the oil will run out and it wont work. Having to find and buy an adapter to plug it in my wall so it is still upright is the reason for 3 stars. If the plug swiveled and it could work without an adapter it would receive 5 stars.