Hybrid Active Noise Cancellation : 2 internal and 2 external microphones work in tandem to detect external noise and effectively reduce it by up to 90%, such as airplane and car engine noise. The noise canceling headphones feature 40mm dynamic driver units that produce detailed sound and punchy bass with BassUp technology. Compatible with Hi-Res certified audio via AUX cable for more details \r\n40-hour battery life and fast charging : with 40-hour battery life with ANC on and 60 hours in normal mode, you can commute in peace without would consider charging. Quick charge in 5 minutes for an additional 4 hours of playback \r\nDual connections : Connect to two devices simultaneously with Bluetooth 5.0 and switch between them instantly. Whether you\'re working on your laptop or need to take a phone call, audio will automatically play from the device you want to hear from \r\nEQ Adjustment App : download the soundcore app to adjust your sound using a customizable equalizer with 22 presets, or customize it yourself. You can also switch between 3 modes: ANC, Normal and Transparency and relax with white noise \r\nHear Your Surroundings : Switch to transparency mode on your noise-canceling headphones when you need to be aware of your surroundings, such as traffic announcements, crossing the road, or simply staying connected to the world around you \r\nReduce noise up to 90% : Internal and external microphones work in tandem to detect and reduce up to 90% of ambient noise \r\nControl your ambient sound : Switch between noise canceling mode, normal mode and transparency mode with the button or the soundcore app \r\nTwo device connectivity : Easily connect to two devices at the same time and seamlessly switch between them \r\nCrystal clear calls : Microphones enhance voice perception to ensure crystal clear sound on the other end \r\nTechnical details : \r\nSound: Hi-Res, BassUp, Customized EQ \r\nActive noise cancellation: Hybrid ANC \r\nTransparent sound: Yes \r\nSoundcore application: Yes \r\nCharging port: USB-C \r\nPlaytime: 60H (ANC off), 40H (ANC on) \r\nFast charging: 5 minutes = 4 hours \r\nConnectivity: Bluetooth 5, AUX \r\nCalls: one microphone \r\nRecommended for: travel, flight, train, transport to work\r\n\r\n\r\n