Enjoy more music, more comfort, and colors that fit seamlessly into your world. The H.Ear on 2 wireless NC Features high-resolution audio for studio-quality sound, plus better Bluetooth streaming with ldac. Digital noise cancelling blocks out the exterior world, or lets in the sounds you want to hear. Frequency Response (Bluetooth Communication) - 20 Hz–20,000 Hz (44.1 kHz Sampling)/20 Hz–40,000 Hz (LDAC 96 kHz Sampling, 990 kbps) Cord Length: Approx. 3.94 ft; Frequency Response: 5–40,000 Hz (JEITA); NFC: Yes; Cord Type: Single-sided (detachable); Volume Sensor: Touch sensor. Battery Charge Time Approx 6 hrs