Others Others Huawei FreeBuds 4i Wireless Headphones HUAWEI FREEBUDS 4i in-ear headphones with ceramic white finish, Huawei Bluetooth wireless headphones, magnetic design in-ear headphones, active noise cancellation technology, rechargeable battery for up to 10 hours of music playback. Huawei FreeBuds 4i is a true wireless stereo headset that supports new intelligence audio using the ANC that eliminates unwanted surroundings by identifying unwanted sound waves and creating precisely inverted signals to neutralize the original sound, thus reducing distracting background noise. to the greatest extent possible. The FreeBuds 4i comes with a 3D bionic design, which fits snugly and close to your ears, reducing load for greater comfort. The earbuds on both sides have built-in flip active touch sensing devices, which can be controlled by the earbuds or mobile phone with a double tap or a long press. Other functions can be configured through AI life app on EMUI 11 or higher on smartphones. By double tapping on the left or right earbuds, you can play / pause / switch music in addition to answering the call. Through long press, user can enable or disable active noise cancellation (ANC), transparent mode or cancel both. In terms of battery performance, it packs a 55 mAh battery in each earbud and 215 mAh in the charging box. In regular use, a user can listen to up to 7.5 hours of music with ANC enabled, 10 hours if disabled. The headphones take at least 60 minutes to charge to 100% inside the box and the charging box takes about 90 minutes (22 hours of backup). Other important features of the FreeBuds 4i include wear detection for intelligent audio interaction and open and close detection of the case as well as the headphones. Plus, it has Bluetooth 5.2 for faster connectivity.