Earbuds are consciously crafted from bamboo and natural fiber and REGRIND™ silicone which means it’s an eco-conscious alternative to traditional earbuds. The braided charging cord is made of 99% post-consumer recyclable polyester lowering its environmental impact. Last 8 hours between charges and 28 hours total with the case. Bluetooth® connectivity. USB-C charging technology for case. Compatible with IOS and Android. Black and wood.