Powered by the latest OnePlus algorithms, Buds 4 can dynamically adjust ANC in real timeup to 800 times per secondbased on ambient noise to ensure optimal noise cancellation. Dynamically switches between ANC and Transparency Modes for safer and smoother listening. 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 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. With IP55 dust and water resistance, youre protected against sweat and rainno worries, just music. 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. The Buds 4 Wireless In-Ear Earbuds are designed to deliver an exceptional audio experience with premium sound quality, intelligent features, and reliable wireless performance. Featuring a comfortable in-ear design and powered by Bluetooth v5.4, these wireless Bluetooth earbuds provide fast, stable, and seamless connectivity for music, gaming, calls, and entertainment. The built-in microphone ensures crystal-clear voice communication, while Adaptive Noise Cancellation up to 55dB effectively reduces background noise for an immersive listening experience. Equipped with dual drivers and dual DACs, Hi-Res Audio, 3-Mic AI Call Noise Cancellation, AI Translation, Voice Assistant support, dual-device connection, 47ms ultra-low latency, and volume swipe controls, the Buds 4 offers premium sound, effortless controls, and smooth multitasking. Finished in a stylish Storm Gray color, these earbuds deliver up to 45 hours of battery life and support Type-C charging for quick and convenient recharging. With an IP55 water-resistant rating, they are protected against sweat and splashes, making them ideal for workouts and daily use. Measuring 6.5 5.2 2.5 cm and weighing just 0.049 kg, the Buds 4 is lightweight, compact, and comfortable to wear throughout the day. The package includes the Buds 4 earbuds, charging cable, eartips, and user manual. Backed by a 1-year warranty and Made in China, the Buds 4 combines cutting-edge audio technology, intelligent features, and long-lasting performance in a sleek and durable design.