Features: brand new and high quality Bluetooth-compatible 5.0 provides instant pairing and stable transmission without interruptions. Ergonomic design makes it painless for long-wear. It has the performance of suppressing and reducing environmental noise. for Smart for touch operation, gently remove the headset from the storage box. Using upgraded dynamic coil speakers to enhance the sense of depth, presence and space, and present a three-dimensional surround effect like a live scene. Specifications: Material:ABS Color:Black,White,Blue(Optional) Bluetooth-compatible Version: 5.0 Operating Range: Up to 33 feet (10 meters accessibility) Charging for Case Standby time: About 90days Earphone Battery Capacity:40mAh Charging for Case Battery Capacity:300mAh Charging for Case Working Current:<300mA Earphone Working Current:14mA Drive Diameter:6cm/2.36in Package Includes: 1 Pair Headsets 1xCharging Box 1xCharging Cable 1x User Manua note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.