The HUAWEI FreeBuds 4i's dual-mic system design reduces external noise whilst its AI reduction technology can pick up your sound even in the most crowded environment. 10 Hours of Continuous Playback and Quick Chargin: Get 10 hours worth of continuous playback on one full charge with the HUAWEI FreeBuds 4i, or a 10 minute charge alone gets you 4 hours worth of audio enjoyment. Pop-up Paring: Just opening your case will initiate a pop-up notification prompting to pair with the HUAWEI FreeBuds 4i. After that they'll auto-connect to your phone or tablet whenever you open the case. (This function requires smartphones and tablets running EMUI 10.0. Other devices support Bluetooth pairing). Crystal Clear Sound: Get rich instrumental harmonies, clear vocals, punchy bass, and finely balanced sound thanks to the 10 mm dynamic coil driver and sensitive polymer composite diaphragm. Awareness Mode: Say no to taking off your earbuds to hear others or any external noise - just press the earbud and hold down to switch to Awareness Mode. Senses Your Touch Accurately: Play music, make calls and reduce noise, all with a few simple gestures. Both earbuds have built-in capacitive sensors for intuitive touch controls, supported by an advanced algorithm for more accurate response. Low latency: With a low latency, the audio and visual of your favourite game always remain in sync, giving you a competitive edge for the win.