Recently, postal drones delivered college admission letters to students in Shibanyan Town in central China's Henan Province. The town has deployed three drones, along with 15 landing pads and five low-altitude logistics stations. The new system has cut delivery times in the mountainous area from more than 10 hours to less than two. The service brings "joy from the sky" to students while showcasing the potential of low-altitude logistics in remote areas.