Soundcore Liberty 4 Pro by Anker, Noise Cancelling Wireless Earbuds, 7-Sensor and Real-Time Adaptive Noise Cancelling, 2× Faster Charging, Studio-Level Hi-Fi Music, Clear Calls with 6 Mics and AI Product Details Matchless Noise Cancellation: Liberty 4 Pro noise cancelling earbuds boast 7 sensors—6 sound sensors and 1 barometric pressure sensor—to capture noise from every angle. From planes to trains, enjoy a serene journey with 3× stronger noise reduction. Real-Time Adaptive Noise Reduction: These noise cancelling wireless earbuds adapt to your ever-changing environment every 0.3 seconds, ensuring optimal, seamless noise reduction around the clock. Effortless Touch Controls: The touch bar and display let you fine-tune the noise-cancelling levels of these wireless earbuds at any time with a simple swipe on the case. Studio-Level High-Fidelity Music: Feature the enhanced ACAA acoustic architecture, a 10.5mm bass driver, a titanium-coated tweeter, and a digital crossover for peak driver performance. Indulge in crisp, full-bodied sound perfected with nuances. Super Fast Charging: Liberty 4 Pro noise cancelling earbuds charge 2× faster than the previous models with the 5C battery. A 5-minute recharge offers 4 hours of playtime. Enjoy up to 10 hours between charges, extendable to 40 hours with the case. AI-Enhanced Clear Calls with 6 Mics: With a noise reduction algorithm and six mics, these wireless earbuds deliver clear calls wherever you are. Plus, a wind noise reduction algorithm ensures seamless, hassle-free communication, rain or shine. FAQWhat are the charging methods and times?Charging Methods: USB-C and wireless charging.Charging Times:Earbuds: 1.5 hours.Charging case: 2.5 hours with a wall charger and 3.5 hours with a wireless charger. How long can soundcore Liberty 4 Pro run on a single charge or with the charging case?ANC Mode: 7.5 hours (single charge); 30 hours (with the case).Normal Mode: 10 hours (single charge); 40 hours (with the case).Transparency Mode: 7.5 hours (single charge); 30 hours (with the case). How do I wear soundcore Liberty 4 Pro?Experiment with different sizes of ear tips to find your best fit.Gently press the earbuds into your ear canals and rotate them until they feel secure.Use the Fit Test in the soundcore app to see whether the current ear tips are right for you. How do I control Liberty 4 Pro with its case and stems?Play/Pause Audio: Pinch either earbud stem.Switch Modes: Tap and hold either earbud stem for 2 seconds.Adjust Volume: Slide up or down either earbud stem.Adjust Ambient Sound Level: Swipe on the case's touch bar.For more, visit the soundcore app. Are the displays on all earbud cases visible when the case is closed?Glossy cases (blue and black) allow you to see the display when closed, while matte white cases do not. We gladly accept payment methods eBay approved. Please make sure to submit the eBay item number with your payment. If you have anyspecial requirements or requests, please contact via eBay message. 30-day money-back guarantee for any reason. For 30 days after the date of purchase, return your undamaged Anker product andreceive a full refund for ANY reason.12-24months warranty for quality-related issues(seeas description). Forpurchases under warranty, we take care of all quality-related issues witha REPLACEMENT. Reminder: Be sure to use your product as directed. Free user support Not sure how to get your Anker product to work properly Contact our world-class,friendly support team for quick solutions. Limitations Our returns and exchange service is limited to all purchases made fromAnkerDirect. If you purchased through a different retailer, please contactthem directly. (Unauthorized reselling of Anker products is prohibited.)Warranty-related shipping costs can only be covered in the country ofpurchase. If the product is taken outside the country of purchase, anyshipping costs will be the buyer's responsibility. Alternatively, we canoffer a 50% refund of the item's purchase price without the need to return.If returning an item, please ship it back within 30 days after you receiveapproval. Further delay may void your return.Friendly reminderWhen contacting us for help, be sure to have your Anker product handy fortroubleshooting! In the event our exchange policy changes, we?ll be sure to update this page. Contact us Email: send us message via eBay Traditional accessories market has been all about price. That is, cheaper, cheaperand even cheaper... At Anker we take a different approach to the market. We do not play the cheapestgame. Instead, we partner with top-notch manufacturers, use best parts, performstringent quality control, all to deliver real long-lasting products to ourcustomers, while still at a great price. On top of the high quality, we also stand behind our products to provide greatservice. Our products may fail 1 in 1000, but our service will not. All together, westrive to provide the best products and an amazing online shopping experience toevery customer.Please notice that our guaranteedwarranty is valid only for the products purchased through our authorizedreseller. Any products sold by AnkerDirect could get our promised service:30-Day Money-Back Guarantee for Any Reason.We will take care of all quality-related issues with a REPLACEMENT or FULLREFUND including return shipping costs.Copyright All Rights Reserved.