• Headphones LED Display 3500mAh Charging Box 9D Stereo In-Ear Sports Waterproof • Bluetooth version: V5.1 • Noise reduction version: CVC8.0 • Working distance: Connect within 10 meters • Single ear capacity: 50 mA • Charging compartment capacity: 3500mAh • Automatic boot: Support • Automatic pairing: Support • Endurance time: About 220 hours in total (need to be used with the charging compartment) • Talking time: About 180 hours in total (need to be used with the charging compartment) • Headphone charging: About 40 times • Magnetic function: Magnetic absorption and charging • Package Includes: 1 x Handsfree
