About this item Automatically on, automatically connected: Just pick up 2 wireless bluetooth headphones from the charging box, they will connect with each other and connect to the last-paired device automatically. Active noise cancellation for immersive sound: High Fidelity Stereo Sound and CVC 8.0 Noise Cancelling, enjoy your music everywhere even in a loud environment. 180-Hour Playing Time and 2600mAh Portable Charging Case: The wireless headphones bluetooth can play for 6hrs on a single charge, the charging case can recharge the bluetooth earphones about 40 times, provide extra 180hrs playback. IPX7 Sweat and water resistant. Quick access to Siri by saying “Hey Siri”