The Bullets Wireless Z are the best wireless earphones we have tested in their price range. They are well-designed, comfortable, and have quite a few convenient features. They also offer certified water-resistance, which is sure to assuage those who (still) go for a run or want to listen to music around water. The sound quality is quite acceptable for the price. We have certainly heard better, most notably from OnePlus' own Bullets Wireless 2, but not in this price range. For buyers on a budget, the audio quality on offer should be perfectly acceptable and even enjoyable.