Promotional Prolink RCS recycled plastic hybrid ANC/ENC earbud Commute, work or travel in silence with these hybrid ANC and ENC earbuds. The ANC function makes sure outside noise is reduced for optimal concentration. The ENC functions filters away external sounds when making a phone call to have a more clear calling experience. The earbuds and charging case are made with RCS (Recycled Claim Standard) certified recycled ABS. Total recycled content: 66% based on total item weight. RCS certification ensures a completely certified supply chain of the recycled materials. The earbuds come in a compact 200 mAh charging case that allows you to charge and take your earbuds wherever you go. The earbuds use BT 5.3 for automatic pairing without any hassle and a stable connection. The earbuds have a 30 mAh battery that allows a play time of up to 5 hours (with ANC) and 7 hours (without ANC) and can be re-charged in 1.5 hours in the charging case. The wireless distance range is up to 10 meters. ANC degree: 23 DB. Including 3 size eartips.