Active Noise Cancelling Tech: The ANC Bluetooth headphones can build a relaxed environment with brilliant immersion even though how loud noise of the situation due to advanced Active Noise Cancelling technology. When the green light on, and the ANC function on. Impeccable Hi-Res Audio: The wireless earphones has the advanced 40mm drivers with AptX codec. It can help the headphones to play remarkable, clear, rich wireless music with low latency and less audio delay. Long Play Time & PD Fast Charging: The headphones exists over 35 hours playtime. The USB-C port supports the fast charging function while charging 30 minutes and getting 2 hours playback. It also only needs 2-3 hours charging time for fully charged 35 hours playtime. CVC 8.0 Noise Reduce & Bluetooth 5.1 Version : Bluetooth 5.1 chip supports the more stability of connection for the wireless headphones. The Bluetooth headset provides the cVc 8.0 noise cancelling microphone which can help to talk and listen clearly for crystal clear calls, no matter the level of background noise. Easy To Carry & Comfortable Design: The over-ear headphones only has 7.8oz(220g) to wear with its memory foam ear pads. The adjustable handband and 90° rotation axis are easy to find the comfortable wearing position. The storage bag within the package can help to carry the headphones everywhere. The package includes the active noise cancellign headphones, the type-c charging cable, the 3.5mm audio line which supports to be wired headphones, the storage bag, the user manual Sccaty Bluetooth Headphones