[Product explanation]●Listen to the outside worldYou can enjoy your own rich sound while taking in the surrounding sounds. ●Open ear design that allows you to connect with your surroundings.OpenAudio technology delivers high quality sound just for you. ●Enjoy music anytime, anywhereYou can listen to music anytime, even while running or having a conversation.It is comfortable to wear, has a stylish appearance, and is equipped with Bose immersive audio.These earphones are recommended for those who want to enjoy music for a long time with the best sound.Bose Immersive Audio plays music in a three-dimensional, immersive way. ●Reduces the burden on the ears. Looks stylish too.This sound wear is comfortable to wear all day long and looks stylish.Bose Ultra Open Earbuds have flexible joints, are extremely lightweight, and are so comfortable you'll forget you're wearing them.The design that hooks behind the ear does not block your ears, so you can be aware of your surroundings. ●Long time playback batteryLong battery life with 7.5 hours of playtime*1 and 48 hours of standby*3.If you use the included charging case, you can play for an additional 19.5 hours.Ideal for charging on the go *2. *1 Tested with Bose (when playing audio at a volume of 75 dBSPL).Battery life varies depending on settings and usage.*2 Tested with Bose.Charge your dead earbuds to 100% (or until the case battery runs out) with a fully charged case and then play audio at a volume of 75 dBA until the earbuds battery runs out.I repeated this until the battery in the charging case ran out.*3 Tested with Bose.I took the fully charged earbuds out of the case, connected them to my phone without any content playing, and kept them connected until the earbuds' battery died. ●Easily adjust listening with button operationsWith simple button operations, you can easily switch between stereo mode and immersion mode to suit your usage environment.You can play music or answer calls by pressing the button. Use with other Bose products ●Enjoy watching TV programs without worrying about your surroundings.Pair your earbuds with Bose smart soundbars and speakers with Bose SimpleSync technology to watch TV at the volume you want. ●Stable connection achieved by Bluetooth 5.3Bluetooth 5.3 provides a powerful and stable connection within 30 feet of your paired device. ● Control everything with the Bose Music appYou can further customize your sound by adjusting the sound using adjustable equalizer settings in the Bose Music app.Within the app, you can freely adjust bass, midrange, and treble, check battery level, customize shortcuts, and manage connected devices. On Oct 12, 2024 at 23:25:12 PDT, seller added the following information: