Features: Earless cap design, smaller and more compact, as small as 6mm Equipped with a larger dynamic size and high-definition sound quality, you can enjoy the professional music listening experience of rich bass without stuffiness, clear range levels, and loud and clear high notes. The intelligent buttons are easy to operate and easy to operate, eliminating complexity and clutter by gently touching, and various earphone operations are indicated Show it at your fingertips. 5.3/5.0 master-slave switching dual mode technology - both sides are master headphones, providing a seamless switching experience between single and dual ear modes. In terms of high-definition sound quality, especially in terms of bass presentation, try to avoid sound quality defects that are not sealed in the middle of the ear as much as possible The earphone can talk for 48 hours with a single full charge and a standby time of 300 hours Specifications: Product size: 13 * 14 * 22mm Product color: white/black/skin Transmission distance: ≥ 10m (in unobstructed open spaces) Sensitivity: 96dB soil 3dB Charging interface: Micro USB Frequency response range: 20Hz20KHz Impedance: 32Q soil 15% Product Name: Mini Earplugs Bt version: Bluetooth 5.3/5.0 Music time: 4 hours Charging time: 1 hour Long standby time: 300 hours Packaging includes 1 * Earphones 1 * Instructions 1 * Charging cable