Polaris speaker can operate as a bluetooth speaker, wired speaker, as FM radio and as an MP3 player. MP3 player uses a TF memory slot. TF memory slot is used for reading regular micro SD memory cards.
In the attached video I show FN radio, streaming music from a micro SD memory card as well as streaming music via bluetooth from my iPad Mini.
♦ The bluetooth speaker works quite well. The sound is crisp and clear. Even bass sounded good for a speaker of this size. To help me evaluate and compare different speakers I always use the same piece of music I can different speakers to each other. As a stress test for the bass I use Bach's Toccata and Fugue in D minor. Polaris speaker handled the most challenging part of the Bach's Fugue well. A lot of small speakers crackle in two spots of the Fugue, but this speaker handled it well.
♦ The speaker runs on removable and rechargeable 18650 lithium battery. This is a standard battery which is available on Amazon. This battery can be recharged in the speaker using a standard USB/micro USB cable. The speaker can be used to stream music while it is recharging.
♦ The speaker arrived with a clear plastic tab inserted between the battery contacts and the speaker to prevent the battery from discharging. The tab is under the battery and is hard to see if you just remove the cover. If you lift up the battery you will see it. Initially, I thought the battery was dead but eventually I found the tab.
♦ When the battery level drops low you hear a voice prompt "battery low" and the speaker volume level will drop around 40% to save the battery power. From that point on the speaker continues to work for another 30 minutes until the battery is completely drained.
♦ FM radio reception was not bad. I got quite a few stations. Some of them were a little hissy but Polaris performed better than many other small FM radios I have tried.
♦ It works well as an MP3 player that I can listen to without earphones.
♦ The speaker can be made quite loud. Volume control buttons are on the top of the speaker.
♦ The speaker weights 23.30 oz. Its dimension are 7.5"L x 2.25"W x 2.75"H
Overall, I thought it produced good sound plus I its versatility of being both an MP3 player and a bluetooth speaker.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★
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