Comcursive independence with the installation of mini vending machines (without electricity) in hostels and hotels. The vending machines are filled with headphones and earplugs. Many hotel guests in larger hotels do not find peace at night, so the earplugs in the vending machine are a welcome encore. A vending machine for the ear-for the inner and outer tranquility. The vending machines are maintenance-free and the setup is cost-effective because they do not consume electricity. The license fee is low and you can start immediately with 3 filled vending machines. Area protection is provided.