FeaturesiOS / AndroidBattery life: up to 10 hoursMicrophone / remote / volume controlANC (Active Noise-Cancelling) technologyTouch controls & Bluetooth connectivityThe Huawei FreeBuds 4i True Wireless Noise-Cancelling Earphones\' dual-mic system design reduces external noise whilst its AI reduction technology can pick up your sound even in the most crowded environment.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.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)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.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.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.With a low latency, the audio and visual of your favourite game always remain in sync, giving you a competitive edge for the win.