Didn't notice any distortion. Not available in passive mode. The power supply does not heat up. A convenient section of the siver for one user, say, simultaneously connect a PC and a Smart. Different pros: Reliability, stability, ease of operation. And why didn't I find it sooner? Cons: Only two devices are online, turn off the bluetooth on one of the two so that the third previously paired device automatically connects. Pairing with a new device only when all paired devices are offline. Black color. The outdated type of power connector is micro usb.
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