AlloyBuds M5 Semi-In-Ear Earphones Are Pain-Free And Feature A Retractable Lid With A Built-In Metal Chain. They're Stylish And Versatile, With A Long-Lasting Battery Life And A Deep Space Design.

1. Compact, semi-in-ear design, pain-free for extended wear, ergonomically designed for maximum comfort and no foreign body sensation. 2. Long battery life, approximately 3-4 hours on a single charge, and the large-capacity charging case allows for extended listening. 3. CD-quality sound quality and crystal-clear calls. 4. Retractable lid with a rotating CD player for effortless listening and immersive listening. 5. Includes a stylish metal chain for versatile wear. 6. Composite diaphragm dynamic drivers for powerful sound, authentically reproducing detailed sound with clarity and a bright, vibrant listening experience.