Oraimo FreePods 4 Active Noise Cancellation Easy Control APP 35.5-hr Long Playtime Noise Reduction in Calls True Wireless Stereo Earbuds Product Parameters: BT Version: V5.2 Wireless Range: 10m Play Time: Up to 8.5 hours, case provides additional 27 hours (ANC OFF); Up to 7 hours, case provides additional 22 hours (ANC ON) Input: Type-C *oraimo Lab test result Product Features: Active Noise Cancellation- Dive into Silence oraimo advanced ANC system can get rid of up to 30dB noise for a quiet and immersive condition. Slide, wear, play, then experience the true tranquility and purity. 35.5-hour Long Battery Time- Let the Vibe Plays Day and Night 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