You want to feel a deep connection to your music. When noise cancellation and sound performance are tailored to your ears, your music is more engaging and impactful. That’s why Bose QuietComfort Earbuds II are engineered with pioneering CustomTune technology that personalises the noise cancellation and sound performance to fit your ears, so you can enjoy an uninterrupted, immersive listening experience no matter what you’re listening to. The world’s best noise cancellation. CustomTune technology shapes the audio to your ears. Quiet Mode for full noise cancelling & Aware Mode for full transparency. Headphone FeaturesPC/ABS Plastic with Silicone Ear Tip ear pieces. USB C for charging cord. Connection: true wireless. Bluetooth enabled for a wireless connection to your devices . Connects to devices via Bluetooth 5.3. Touch controls on side controls. Featuring gesture control. Active noise cancellation. 9.1m range. Carry case. Bass control. Water-resistant. IPX4 splashproof. Compatible with universal smartphones. Lithium battery (included) . Rechargeable battery. 6 hour battery life. 180 minute charging time. Fast charge to boost battery life. Charging case included. In the box: Headphones (2 earbuds), Charging Case, 3 pairs of eartips (1 pair pre-installed on buds, 3 pairs of stability bands (1 set pre-installed on buds), USB Cable, Quick Start Guide, Safety Sheet. General InformationModel number: Quiet Comfort Earbuds II. Manufacturer’s 2 year parts and labour guarantee. EAN: 17817838320. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard.