FEYNMAN. Foldable wireless headphones - Foldable wireless headphones made of wheat straw and ABS material. Output power 32mW and bluetooth 5.0 up to 10m range. 400 mAh battery and autonomy up to 13 hours. Includes an AUX port, TF/SD card slot and micro USB charging cable. Volume and on/off buttons. Supplied in a kraft paper box - Foldable wireless headphones made of wheat straw and ABS material. Output power 32mW and bluetooth 5'0 to 10m range. 400 mAh battery and autonomy up to 13 hours. Includes an AUX port, TF/SD card slot and micro USB charging cable. Volume and on/off buttons. Supplied in a kraft paper box. Headphones (folded): 185 x 185 x 74 mm