Anker Soundcore Life Q20i Wireless Over-Ear Headphones, Hybrid Active Noise Cancelling, Big Bass, Transparency Mode, Black Hybrid Active Noise Cancelling: 2 internal microphones and 2 external microphones work in tandem to detect external noise and effectively reduce up to 90% of it, such as that produced by airplanes and car engines. Impressive audio details: The Soundcore Life Q20i headphones with Active Noise Cancelling have oversized 40mm dynamic drivers that produce detailed sound and powerful beats with BassUp technology. Compatible with Hi-Res certified audio via AUX cable. Long 40-hour battery life and fast charging: With 40 hours of battery life with ANC on and 60 hours in normal mode, you can travel in peace with the Soundcore Life Q20i Bluetooth headphones without thinking about recharging. Quick charge for 5 minutes to get 4 extra hours of playback. Dual MultiPoint 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 answer a phone call, the sound on your Bluetooth headphones will automatically play from the device you need to listen to. EQ Customization App: Download the Soundcore app to customize your sound with the customizable equalizer, with 22 presets or adjust it yourself. You can also switch between 3 modes: ANC, Normal and Transparency, or relax with white noise. Listen to your surroundings: Switch to Transparency mode on your headphones when you need to be aware of your surroundings, such as announcements on public transport, crossing the road or simply staying connected to the world around you.