哈罗单车 is a bike-sharing service that operates in various cities across China. It allows users to rent bicycles through a mobile app, making it convenient for short trips and reducing traffic congestion. Users can locate, unlock, and pay for the bikes directly from their smartphones. The service promotes eco-friendly transportation and encourages a healthier lifestyle. With a growing number of bikes available, 哈罗单车 aims to provide an affordable and accessible option for urban commuting, contributing to the development of smart city initiatives in China.