The sound quality is not comparable to high-end headphones, BUT it is definitely not junk, no noise, has nice sound for listening to music, audiobooks, and podcasts, built-in mic for very clear callsComfortable fall asleep with listening to the natural sound all night with the small earbud unstung weared hidden in your earNOTE: This product comes with only one earbud (instead of a pair) and may not be suitable for people with very small ear canalsThe X7 single wireless bluetooth earbud is a product that it is worth much more than the priceNOTE: No charging case and charger adapter; Please don't charge it with PD fast charger adapter or >15W high power charger adapter, it's easy to damage the earbud. If you need assistance, please do not hesitate to reach out to us. Our team is available to answer any questions and provide support within 12 hoursIts a refined and mini, in-ear design, almost invisible after wearing it, Great for Walking, Running, Jogging, Hiking, Biking, Gym, Driving, Working, Relaxing, etc.JGDRNo need to worry about running out of power, its super long battery life for more than 12 hours of continuous to listening musicOne earbud is not enough? It doesn't matter, with a simple operation, you can get STEREO SOUND through any two earbuds paired and used to meet your needs for binaural headphones, just order 2pcs (See Product Description as Operating Instructions below)