【Premium Build Quality】Crafted with a blend of high-quality metal and plastic materials, ensuring a lightweight yet durable frame for comfortable extended wear. 【Precision Hinge Design】Features a precision-engineered hinge connecting the temple arms to the frame, providing smooth operation and long-lasting durability. 【Large Square Lenses】Generous lens coverage offers enhanced UV protection, safeguarding your eyes from harmful rays while providing a stylish look. 【Advanced Bluetooth-compatible Connectivity】Equipped with Bluetooth-compatible 5.4 technology for stable connections up to 10 meters, enabling seamless audio streaming and call handling. 【Long-Lasting Battery Life】Each side houses a 150mAh battery, delivering 4-6 hours of continuous use for all-day entertainment and communication. 【Quick Charging Capability】Convenient magnetic DC charging port allows for a full charge in just 1 hour, minimizing downtime. Specifications: Main material: ABS+resin Bluetooth-compatible version: Bluetooth-compatible 5.4 Effective distance: 10m Speaker size: 10mm Battery capacity: 150mAh on each side Interface type: DC magnetic interface Charging time: 1h Usage time: about 4~6 hours