Astrum BT-021N is a feature rich device that amplifies your music, can double up as a power-bank for those tight situations, But if you are looking for clarity, precision, and all those lofty "luxurious" ideals, you need to look somewhere else.
Now for the flip side: the speaker isn’t the best performer out there. While there is some bass, it’s accompanied by distortion as well. The speaker produced about the same volume output as the Zoook BS100 perhaps a smidgen less but not too much. At this price point you can’t expect stellar audio quality and that is what you get – something that greatly amplifies the capabilities of your smartphone speakers but not much else. If you’re looking for clarity, precision, and all those lofty “luxurious” ideals you’ll need to look elsewhere and be prepared to shell out more moolah. But if you’re looking for a feature rich device that amplifies your music, can double up as a power-bank for those tight situations, then look no further, the Astrum BT-021 is your speaker.
Specifications
Interface: Bluetooth 3.0 with NFC, AUX, USB
Rated battery life: Up to 7-10hours
Power: 5W RMS
Mic: Omni directional/noise filter Microphone
Battery specs: 1600mAh, 5-7Hrs Charging time