Unique double chargeable wireless earbuds with integrated solar panel in the casing made with RCS certified recycled ABS. Total recycled content: 21% based on total item weight. RCS certification ensures a completely certified supply chain of the recycled materials. The headphones use high quality monocrystalline solar panels with 19% conversion rate. Charge rate depends on conditions. Charging speed solar: 5V/50mA. The perfectly fitting earbuds have a 35 mAh battery and can be re-charged in the 300 mAh charging case within 2 hours. With auto pairing function so easy to pair to your mobile device. Playing time on medium volume up to 5 hours. With BT 5.3 for optimal connection. Operating distance up to 10 metres. With pick up and mic. Including 3 size silicone ear tips abd RCS certified recycled TPE charging cable. Packed in FSC® mix kraft packaging. Item and accessories 100% PVC free.