Soundcore by Anker Liberty 4 NC True Wireless Earbuds - outstanding noise-cancelling and a high-quality audio performance. RICH, CUSTOMISED SOUND The 11mm drivers deliver rich and powerful bass. Use the Soundcore app for a better music experience to customize your EQ and sound profile. Experience Hi-Res wireless audio and LDAC technology that transfers 3x more data than regular Bluetooth - bringing your wireless music to life. You can also use the Soundcare app to adjust between 22 different EQ modes to find the perfect match for your listening preferences. UP TO 50 HOUR BATTERY LIFE Enjoy up to 10 hours of uninterrupted listening from a single charge of your Liberty 4 NC Earbuds - and another 40 hours using the charging case! ADAPTIVE ANC Get optimised noise cancellation to deliver all you need. When you're indoors or on the go, you get noise reduction by up to 98.5% with Anker's advanced noise cancelling system. Adaptive ANC 2.0 makes real-time calculations and adjusts to your ear canals and external environment for maximum quiet amongst the hustle and bustle. BLUETOOTH 5.3 Liberty 4 NC offer quick, effortless Bluetooth pairing with Android devices, auto-play and pause on wear, and multi-point connection with Bluetooth 5.3. EASY CONTROLS Manage calls and audio playback with just a press of a button. IPX4 WATER RESISTANCE Your Liberty 4 NC Earbuds are resistant to sweat, rain and splashes. CLEAR CALLS Enjoy clear AI-enhanced calls thanks to 6 microphones and a proprietary algorithm for improved voice pickup. Depth: 108 MM Height: 55 MM Width: 108 MM Bluetooth: N Dongle Required: N Noise Cancellation: N Wifi Enabled: N Innovative Experience Premium Audio & Heart Rate Tracking 360° Immersive Spatial Audio Dual Dynamic Drivers, HearID Adaptive ANC Adapts to Ears Playtime (Single/With Case) 9H/28H, Wireless Charging Special Features AI-Enhanced calls with 6 mics, Squeeze Control, IPX4