Their drones are able to fly up to 100 km and carry up to 1.5 kg.[45] Amazon Air and UPS are two others companies using drone delivery.[46] A German aerospace company called Wingcopter in collaboration with UNICEF has also delivered vaccines in Vanuatu in 2018.[47] In 2020 wingcopter eVTOL drone was used to deliver COVID-19 test kits to Isle of Mull.[48]