With the included USB charging cable, I have charged the battery first. During charging you can use the speakers. Joining my smartphone with the speakers via Bluetooth presented absolutely no problem. Mainly I got the speaker taken because it can be used in addition to Bluetooth and FM radio via Micro SD card.
The speaker of the small cube is directed upwards. the cube is held in an attractive golden color and the rest of the cube in black. In the black area there are also all the connections, the Micro SD card slot as well as the control buttons.
The volume can be, if the device is operated via Bluetooth, regulate on the reproducing apparatus, and also directly at the speakers.
Listen to FM Radio I have not tried yet.
To play music via Micro SD card I have the current Top 100 loaded me on a 4 GB card. Use via Micro SD card I find really excellent and is functioning properly.
I have long sought but found nothing negative and forgive therefore absolutely deserved five stars!