SELECTED OPTION:COLOR: BLACK . Package Included: 1 x bluetooth Earphone 1 x Charger Box 1 x Charing Cable 1 x Manual Features: 1. bluetooth 5.0 technology, using the latest bluetooth technology of version 5.0, it can be compatible with the old version, bringing the advantages of faster and longer transmission distance. Adopt true wireless technology, enjoy your wirelessly sports. 2. Single-sided mode and binaural mode, satisfying your need. 3. Auto paring, take out the automatic power-on connection, memory connection, no need for cumbersome operation. 4. CVC noise reduction technology: improve the recognition level of voice, and can easily communicate even in noisy environment. Make the call clearer and more real. 5. Long working duration: With 650mAh portable charging box which can power your earphone for 6times.The headphones can be continuously listened to music for about 6 hours when the headphones are fully charged 6.6mm speaker, HiFi dynamic sound quality, 5D sound. 7. Mini stealth earphone, lightweight, and the ergonomic design brings you comfortable and cozy wearing experience. Specifications: Color: Black Wearing Type: In-ear Microphone: Yes bluetooth Version: V5.0+EDR Transmission Distance: 10m Battery Capacity: 650mAh (Charger Box), 50mAh (Each Earphone) Charging Time: 1hour (earphone) Play Time (with charging box): 40hours