Features: Independent Dual Host: The headset has an intelligent dual processing chip making independent dual host so both of headphones are main headphones. Intelligent Noise Reduction: The third generation of intelligent noise reduction engine can reduce bottom noise according to the sound source. No Delay Effect: This Bluetooth-compatible headset has almost no delay effect and it can achieve audio and picture synchronization.  Clear Calling Experience: Bluetooth-compatible headset has integrated audio high volume sensitivity so it can improve calling experience. Wide Applications: For electronic devices that is Bluetooth-compatible including mobile phones tablets etc. Suitable for calling playing games watching videos and other activities. Specifications: Endurance Time: 4-5h Charging Time: 1-2h Charging Case Capacity: 300mAh Headset Capacity: 35mAh Transmission Distance: 15m Package Included: 2*Headphone 1*Charging Case 1*Charging Cable 3*Pair of Ear Caps 1*Packaging Box Notes: Please note that due to the influence of light and screen slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. includes: 2*Headphone