Case - Wireless charging case with built-in wireless charging receiver and QI wireless charging standard - just insert Airpods into the case, place on the wireless charging base QI and start wireless charging. The material is high quality PU leather that is resistant to abrasion and deformation. The inside is made of padded microfibre, provides protection against scratches, deformation and dirt. The built-in wireless charger will charge the headphones and the case, compatible with any wireless charger that supports QI charging