About this item [Industry leading ANC up to 55 dB & 5500Hz range]: Powered by the latest OnePlus algorithms, Buds 4 can dynamically adjust ANC in real time—up to 800 times per second—based on ambient noise to ensure optimal noise cancellation. [All-New Adaptive Mode] Dynamically switches between ANC and Transparency Modes for safer and smoother listening. [Flagship level near-lossless sound]: Featuring twin tailored DACs (Digital-to-Analog Converter), an 11mm woofer and a 6mm tweeter, precisely engineered to deliver powerful bass and clear treble, creating rich lows and pristine highs across a wide soundstage. Industry leading Hi-res Codec of LHDC 5.0 and upto 1 Mbps 24-bit 192kHz LHDC 5.0 meets studio-grade Hi-Res for silky-smooth sound with reduced latency. [Steady Connect | AI translation] Steady connect ensures reliable connectivity both indoors & outdoors. It ensures ultra strong bluetooth with massively extended range up to 250 meters(For select OnePlus phones with Oxygen OS15.0.0 & above). With AI translation, break the language barrier. Experience seamless real-time conversation in many languages. [IP55 Rating]: With IP55 dust and water resistance, you’re protected against sweat and rain—no worries, just music. [Customizable settings for hassle free control]: Slide up/down for volume control, Long touch/hold to switch among ANC, adaptive & transparency mode, single tap for play/pause,double or triple taps for switching songs. [47ms low latency in game mode]: Low latency ensures every gunshot, footstep, and game alert syncs perfectly with your actions, providing users with a smoother and more enjoyable gaming experience. [Fast charing & longer battery life]: Large battery delivers up to 45 hours of non-stop music with ANC Off; A quick 10-minute charge delivers up to 11 hours of music playback. [Dual-Device Connection | BT5.4 | Google Fast Pair ]: Simultaneously connect to two devices (Android/iOS/Windows smartphones, tablets or computers) for quick and seamless device switching, Google fast pair simplifies the pairing process, Voice assistant shortcut (Google Gemini, Google Assistant or Apple Siri) to help you with various tasks.