Elite wireless in-ear headphones - BT 5.1 over-ear wireless headphones, made of RCS certified recycled materials, 66% total recycled content based on total weight, FSC® certified bamboo details, built-in microphone, call answering function, built-in 200 mAh battery allows you to play music for up to 5 hours, recharges in 2 hours, recycled TPE cable included, in a FSC® mix certified craft box, PVC-free, product carbon footprint: 0.88 kg CO2