Good range. I checked through 2-3 concrete walls within 10-15 meters. When listening to music through 3 walls (panel house), it beats well, there is almost no distortion. When used as a voice headset, it breaks through the third wall, but distortions already appear, and the interlocutor becomes less audible. In delivery: headphones, microUSB-USB power cable, instructions in English/China.
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