The music can be delivered through various Bluetooth-enabled devices to the speaker. I have tried this with various smart phones and a laptop. Its range is approximately 15 meters.
Alternatively, it is also possible to listen to the radio (FM). This is quite difficult in the house (at least for me), because the reception is not supported by an external antenna.
When things do not want to work with the radio transmission, the Speaker has an AUX port (plug included), USB and a card reader for TF (MicroSD) on the rear panel.
There is also the connection to charge the batteries. The latter can be exchanged via a box at the bottom. It is also possible to charge the speaker via the USB port.
Operation of the BX-300 is quite simply designed and easy to learn. The images in the short (German) Operating instructions are to recognize though not good, but because there are only 6 buttons to operate, you can also quickly guessed (volume and track forward / back are indicated by the symbols commonly known).
The relevant information on the current mode are displayed clearly visible in red letters on the front of the speaker. Report beeps changes to the settings and the connection status.
I like the BX-300 very good, as appearance and performance match. The supplied accessories (USB cable, audio cable) is sufficient for the operation and the operation is intuitive, and easy to learn. A firm of use, I have not set the portable speakers now commutes between kitchen and terrace back and forth,