Premium 100% wireless in-ear headphones with superior Bang & Olufsen Signature Sound and an intuitive touch interface for music and call control and voice commands. The E8 has a perfect fit for the ear and comes with a genuine leather charging cradle so it can be charged on the go. With over 4 hours of playback time, you can take the E8 with you wherever you go. In Transparency mode, you can turn on ambient noise with a simple flick of the wrist using the four levels of transparency in the Beoplay app. For better connectivity and to prevent the sound from diminishing as it penetrates human tissue, the Beoplay E8 uses NFMI (Near Field Magnetic Induction), an audio streaming technology that transports sound from one headphone to another via a magnetic field. This allows the master headphones to transmit the sound to the slave headphones without loss of quality. NFMI technology is the digital wireless technology currently used in hearing instruments. When making a phone call or listening to music, the right headphone can also simply be used as a stand-alone device. A charging time of only 20 minutes gives you one hour of music enjoyment.