These next-generation true wireless earbuds intelligently personalise both noise cancellation and sound performance to your ears. So you can enjoy uninterrupted, immersive listening wherever you are. Bose QuietComfort Earbuds II are engineered with pioneering CustomTune technology that optimises the sound, and the quiet, to fit your ears. They ensure all-day comfort and a secure fit, so you can find your own uniqueness with a sound, and a fit, shaped to you. Truly wireless freedom Totally cable-free design frees you up for comfortable, maximised movement. With Bluetooth 5.3, these earbuds are designed to play reliably and consistently, with a pure and stable signal. As long as you're within 10m of your device, you'll stay securely connected to your sounds. That supreme Bose sound Bose QC Earbuds II deliver life-like, balanced sound with nuance, clarity and depth, so you feel seamlessly connected to your music. They're built with high-performance drivers, amplifiers and electronics that are custom-designed to fit a small package, so you can almost forget you're wearing them. Three small ports in each bud deliver deep low notes and thrilling, thunderous bass. Personalised Noise Cancellation Bose's supreme noise cancellation starts with ensuring an optimal fit to your ears. The soft, silicone ear tips have an umbrella shape that creates a firm seal at the opening of your ear, blocking outside noise. Microphones detect environmental noise and generate an opposing signal to cancel it, making your quiet sound quieter. Bose CustomTune technology then personalises the noise cancellation to your ears for exceptional quiet, and energising, immersive sound. Find the best Fit To ensure they feel comfortable and stay put no matter what you're doing, they come with a Bose Fit Kit. It includes three pairs of ear tips and three pairs of stability bands designed to fit the unique shape of your ears. Both are made from soft silicone for all-day comfort and a secure fit ...for every ear. Simple touch control Bose QuietComfort Earbuds II allow you to control your music with the simple touch interface on the earbuds. It frees your hands so you can stay focused on whatever you're doing. With simple touch controls, play or pause music, change the volume, switch tracks, answer an incoming call, and control noise cancellation. You're in control of your sound Quiet Mode offers maximum noise cancellation, so you can feel fully immersed in your music. And if you want to hear what's going on around you at the same time, Aware Mode offers full transparency to hear your surroundings. ActiveSense technology softens the loudest sounds, like a passing bus, to a more pleasant and balanced volume. Using the Bose Music app you can create up to 11 different noise cancellation profiles. They know when they're in and pause when they're out Sensors know when they've been inserted or taken out. Remove an earbud and the audio will pause, and the earbud in the other ear switches from Quiet Mode to Aware Mode. Bose Music app The Bose Music app (available on iOS and Android) lets you name the Earbuds, customise controls, check battery life, choose your voice assistant, and more. Crystal-clear, natural-sounding phone calls Use Bose QC Earbuds II to enjoy clear and natural-sounding phone conversations. Two noise-rejecting microphones in each earbud focus on the sound of your voice and filter out ambient noise and wind. Sweat and weather resistant They're IPX4 rated to ensure protection when you're wearing them outside, so you can keep listening in confidence in the rain or snow. Recharging carry case The Quietcomfort Earbuds keep going for up to six hours off a single charge. They recharge in the included carry case, which, when fully charged, contains up to eighteen more hours of power. And if you're short on time, a quick twenty minute charge gives up to two hours of playtime. These True Wireless headphones are compatible with all smart devices with Bluetooth, including from Apple, Samsung and Google, and other Android smart phone brands.