About the OnePlus Buds 4.They offer powerful active noise cancellation of up to 55 dB, superior to the predecessor model, while maintaining an affordable price compared to other headphones with similar features. Their sound with support for the LHDC codec ensures enriched bass sounds.In addition, they come with low-latency Bluetooth connectivity, a splash-resistant design, and a battery with up to 45 hours of autonomy.Noise cancellation up to 55 dB.Whether on the train, in the office, or in crowded bars, you can enjoy quiet and immersive listening thanks to the adaptive ANC technology that covers a wide bandwidth range of 5.5 Khz.3 integrated microphones in each earphone.You will also have the possibility of making clear calls with a total of 6 microphones and the intelligent algorithm that reduces environmental noise to capture the voice accurately.Low latency connectivity.Thanks to the improved Bluetooth v5.4 chip, the Buds 4 achieve a more stable connection and a latency of just 47 ms, making them an excellent option for gaming.Up to 45 hours on a full charge.Their 530 mAh total battery provides one more hour of playback than the OnePlus Buds 3.If noise cancellation is active, the estimated battery life is reduced to 27 hours total.Technical Specifications Oneplus Buds 4 Green:.Brand: Oneplus.Model: Buds 4.Bluetooth: Version 5.4.Drivers: 11mm + 6mm.Supported codecs: LHDC, SBC.AAC.Design: In-ear.Automatic adjustment: Stereo.Water resistance: IP55.Automatic on/off/pairing.Active noise cancellation up to 55 dB.3 microphones per earphone.Characteristics:.Ideal for sports.Stereo.Hi-Res Audio.Automatic connection.Battery: 530 mAh total / 62 mAh per earphone.Duration: 45 hours / 11 hours each earphone (with ANC deactivated).Color: Green.Package content:.1 x Pair of Oneplus Buds 4 Green headphones. 1 x Charging case.2 x Pairs of interchangeable ear tips.1 x Instruction manual.