Please note the item is compatible with Amazon products Alexa and Echo. Caution:The Bluetooth amplifier must be installed in a dry location, such as the loft space. Ing and providing trust to your potential users. 12V 3A US Power Adapter+ Stereo Receiver Bluetooth Amplifier Box.Once, we send out the parcel, It takes about 3-5 days to deliver your parcel. We will cover the cost if sending replacement/repaired items. Please message us for any problems and solutions. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "herdio-de03" and is located in this country: US. This item can be shipped to United States.