They were like a mantra, repeated over and over until it was divorced from words and became pure sounds. (twocoatsofpaint.com)
Bluetooth audio is compressed, so Bluetooth speakers can't compare in terms of pure sound quality to Wi - Fi — based systems such as AirPlay and Sonos. (thewirecutter.com)
Stream music from any phone, tablet or laptop with the best Bluetooth wireless speakers for pure sound quality (t3.com)