Come and see our amazing products. Adopting Bluetooth 5.0 technology, the signal is strong, the mobile phone is turned on one second with stable transmission, low power consumption and the call has no delay. Fever HIFI sound quality, intelligent noise reduction, high-definition stereo, sound quality experience is first-class. Comes with a compact 500 mAh charging compartment, convenient for storage and carrying, long battery life, no need to worry about no power problems during outdoor travel, support IOS system to check the battery status. The headphones are separated by single and double, and can be connected to two devices separately, which can be used alone or in dual headphones. The body is small and compact, and it is easy to carry/hide. Pls confirm further with us if any query about packing info, inventory status and time schedule.