Now I have this Bluetooth speaker for some time in use and am very satisfied with it. The sound quality I emfinde as very fine and perfectly adequate for such a small stereo speakers. So far I've only ever the connection between my smartphone and this speaker made via Bluetooth to stop in this way my saved on the SD card music ... or even the sound from YouTube videos or radio stations that I on my smartphone look or have on there, to listen to the speaker. And that works fine so far and I could not detect any dropouts during the Bluetooth transmission.
As a very positive and beneficial, I find it also means that the original Li-Ion battery of Nokia is removable and that you can replace it with another of the same Li-Ion battery. That's why I then also already ordered me a replacement battery of Nokia at Amazon.com. The spare battery can be charged in the Bluetooth speakers. The charging time of the lithium-ion batteries with 2-3 hours rather short and you can also for charging a USB charger Universal Power Adapter (with a regular USB A connector) use.
In addition, this Bluetooth speaker of EasyAcc has an FM radio function, Slots for USB A and SD card - so you can also listen to MP3 files from a USB stick or SD card, a stereo sound output and a headphone output. In addition, you can also use this Bluetooth speaker as a speakerphone, which I have not tried.
A built-in red LED indicates the charging operation of the battery and turns off when the battery is charged. A whistle signals when the loudspeaker is coupled with Bluetooth. And the Bluetooth mode flashes a blue light emitting diode. On top of the housing there are various control buttons whose functions I did not want to further describe now.
The only downfall to this Bluetooth speaker I find it in any case, that he, as I already described in other reviews is the main switch, located on the rear panel very shaky. And I hope now that I do not at some point it out breaks of this main switch in frequent use my Bluetooth speaker. Here EasyAcc would slightly improve unconditional and install a more stable power switch at the next generation of Bluetooth speaker definitely.