1.HiFi Stereo Sound & Noise Cancelling: This bluetooth earbuds equipped with a Hi-Fi speaker that immersive 3D stereo sound and clear audio, perfect for enjoying music and hands- calls. This noise cancelling earbuds mit dual built-in HD microphones and professional noise cancellation technology, it can suppress ambient noise during calls. 2.150H Playtime & LED Display: The ear buds wireless bluetooth earbuds can be fully charged in just 1.5 hour, with a music playtime of about 5 hours. The 3500mAh charging case can charge the earbuds 15 times, allowing it to last about 150 hours. You can also see the remaining power of headphones and charging case through LED display. 3.Low Latency & High Stability: Adopting updated Bluetooth V5.2 technology, this wirelesss bluetooth earbuds with microphone you unparalleled audio experience with faster and stable transmission. It maintains a good balance between sound quality, low latency and connection stability. No distortion and latency to make your music and phone calls worry . 4.Touch Control & Fast Connection: Smart touch control, compared with button ear buds, can effectively avoid the severe pain caused by squeezing the ear when operating the bluetooth headphones. With innovative pairing technology, after the earbuds wireless bluetooth connected to your phone, simply take the headphones out of the charging case and they will connect automatically at next time.