**Features** 1. **Lightweight and Durable Design:** The case is designed with lightweight materials, measuring 1.97 x 1.1 inches and weighing only 0.15 pounds, making it convenient to carry. 2. **High Cost-Effectiveness:** The charging case is made of durable PC material and soft ABS plastic, providing a smooth and durable feel. It's a good option for replacing a lost or damaged charging case. 3. **Fast Charging and Built-in Battery:** After a full charge, the charging case's large battery can charge the earphones approximately twice. Charging is convenient at home, in the office, in the car, or while traveling. The built-in chip protects your device from short circuits, overvoltage, overcurrent, and overcharging, ensuring safe use. **Specifications** * Bluetooth Version: 5.0 (Supports dual-ear calls) * Colors: Black, White, Gold * Bluetooth Transmission Distance: 15 meters * Earphone Battery Capacity: 30mAh (Left/Right) * Battery Model: Polymer Battery - 401012 * Charging Case Battery: 502030 * Speaker: F10 * Working Current: 18mA * Standby Current: 4uA * Standby Time: 130 hours * Talk Time: 4.5 hours * Music Time: 4.5 hours * Charging Time: 1 hour * Charging Case Capacity: 250mAh **Package Includes:** * 1x Wireless Bluetooth earphones (with charging case)