The sound quality is not comparable to high-end headphones, BUT it is definitely not junk, no noise, has good sound for listening to music, audiobooks and podcasts, built-in microphone for very clear calls. Comfortable to fall asleep with and listen to the natural sound all night with the small earbud that sits comfortably and hidden in the ear. NOTE: This product comes with only one earbud (instead of a pair) and may not be suitable for people with very small ear canals. The X7 single wireless Bluetooth earbud is a product worth much more than its price. NOTE: No charging case and no charging adapter; Please do not charge it with a PD fast charging adapter or >15W high-power charging adapter, it is easy to damage the earbud. If you need help, do not hesitate to contact us. Our team is available to answer all questions and provide support within 12 hours. It has a refined and mini, in-ear design, almost invisible after use, perfect for walking, running, jogging, hiking, cycling, gym, driving, working, relaxing, etc. JGDR You don't have to worry about running out of power, its super long battery life for more than 12 hours of continuous music listening. One earbud is not enough? It doesn't matter, with a simple operation you can get STEREO SOUND by pairing and using two earbuds to meet your needs for binaural headphones, just order 2 pcs (See product description as user manual below)