The black Beoplay E8 Earphones from B&O PLAY by Bang & Olufsen deliver a truly wireless listening experience in a sleek, gem-like design. Featuring dual 5.7mm electro-dynamic drivers and Bluetooth 4.2 connectivity, the E8 earphones can stream high-quality digital audio from any compatible Bluetooth device. Intuitive, easy-to-access, on-device controls let you quickly adjust tracks, and a built-in omnidirectional mic allows you to make hands-free calls and activate your phone's voice commands.You can customize your listening experience using the free companion app and fine-tune audio with features like Transparency Mode, which lets you choose how much external noise gets through. The E8's jewel-like design is both durable and moisture-resistant, so it's safe to work out in. Both left and right earphones house a rechargeable lithium-ion battery that deliver up to 4 hours of listening time. 5 pairs of eartips in various sizes, as well as a charger carrying case, are included.