soundcore Anker Liberty Buds 2 ANC Wireless Earbuds, 28H Playtime Thus™ AI Chip, IP55, Clear Calls Anywhere, Adaptive ANC, 4.7 g Ultra-Lightweight Design, Multipoint Connection

Stay in the Zone with Pure Silence: Powered by Anker Thus AI Chip and a 6-sensor full-band ANC system, these earbuds cut through the noise to create space for deep focus and clear thinking anywhere. No More Repeating in Calls: Thus AI and 8 sensors (3 mics + 1 bone-conduction sensor per bud) work together to isolate your speech, so your voice comes through with crystal clarity on every call. Sound Tuned to You: Experience high-fidelity detail with a single 9.2mm PU + LCP composite diaphragm driver. HearID 5.0 analyses your hearing profile, like a personal sound engineer for your ears. All-Day Comfort, Barely-There Fit: At just 4.7 g, the ultra-light design delivers low-pressure comfort for all-day wear. Its sleek, unobtrusive profile stays comfortably in place. Anker Thus AI Chip: The "World's First" claim refers to NOR Flash CIM chips. 150× computing power is compared with our previous flagship earbud chip in internal testing. Soundcore App Support: Download the Anker soundcore app for software updates and access to available features. Personalize your listening experience with HearID, EQ modes, and adjustable ANC settings. Customize touch controls, adjust touch sensitivity, or disable touch controls entirely in the app. OTA firmware updates help keep your earbuds up to date. Battery Life (only earbuds/ with case): runs 12h/46h in Normal, 7h/27h with ANC or Transparency, 4h/15.5h on Calls+ANC and 4.5h/17.5h on LDAC. 10 min charging = 4h using, so say goodbye to battery anxiety. It's genuinely very comfortable, but it's not specifically designed for sleep.