I purchased the Koar Bluetooth earbuds about 6 weeks ago. I have used them for listening to music and talking on the phone on my iPhone 6 plus as well as on my iPad Air 2 to listen to court cases for school. I also use the earbuds on my laptop. I have to say for each application the earbuds link quickly to each Bluetooth device and the sound quality is top notch. The highs, mids, and low sounds are tremendous, whether your listening to funk, soul, pop, dance, world, or classical music. I highly recommend these earbuds.