Feature:1. oraimo advanced ANC technology can get rid of up to 30dB noise for a quiet and immersive condition.2. Slide, wear, play, then experience the true tranquility and purity.3. 5 EQ Modes and More, Match Your Musical Taste. It consistently brings you the best sound quality by seamlessly tuning audio on oraimo Sound APP. oraimo also gives audiophiles and music enthusiasts the tools to tailor their exclusive style for their every whim.4. 4-mic Beamforming array and AI Deep Neural Network algorithm work together to reduce the surrounding noise around the caller. Therefore, the people you are calling can hear your voice more clearly.Specification:Features:oraimo advanced ANC technology can get rid of up to 30dB noise for a quiet and immersive condition.Slide, wear, play, then experience the true tranquility and purity.5 EQ Modes and More, Match Your Musical Taste. It consistently brings you the best sound quality by seamlessly tuning audio on oraimo Sound APP. oraimo also gives audiophiles and music enthusiasts the tools to tailor their exclusive style for their every whim.4-mic Beamforming array and AI Deep Neural Network algorithm work together to reduce the surrounding noise around the caller. Therefore, the people you are calling can hear your voice more clearly.On a full charge, oraimo FreePods 4 offers 8.5 hours of power and the handy charging case provides a further 27 hours to keep you going throughout the days. A 10-min Quick Charge provides up to 170-min battery life.Specifications:BT version：V5.2Music time：8.5+27 hrs (ANC Off)7+22 hrs (ANC On)Charging time: about 2-hrDriver Size: 10mmTransmission distance：10mWaterproof: IPX5Material：PC+ABSColor：Meteorite GrayPackage List:1 Pair * EarphonePackage List:1 Pair * Earphone