SPATIAL AUDIO EARBUDS: Tap into a deeply immersive listening experience that places the audio directly in front of you and makes your music feel more real than ever before WORLD-CLASS NOISE CANCELLATION: CustomTune technology analyzes each ear and adapts sound so the active noise cancelling earbuds offer a premium listening experience that’s custom tailored just for you CUSTOMIZABLE FIT FOR ALL DAY COMFORT: Swap between nine soft eartips and stability bands to find the perfect fit that feels snug and comfortable for those extra-long listening sessions 3 LISTENING MODES: Focus with world-class noise cancellation in Quiet Mode, hear your surroundings in Aware Mode, and engage in full noise cancellation and Bose Immersive Audio using Immersion Mode LONG-LASTING BATTERY: These Bluetooth noise cancelling earbuds give you up to 6 hours of listening time (up to 4 with Immersive Audio), and a 20-minute charge gives you up to 2 hours of additional play time