Product size: 17.8*14*14CM (length x width x height)
Built-in lithium battery: 2000MAH
Power supply: DC5V/2A
Speaker: 4Ω*3W internal magnetic speaker
USB interface: Micro-USB
Three timing modes of 15 minutes, 30 minutes, and 60 minutes
People with insomnia, middle-aged people with sleep disorders, teachers, students, ladies, IT workers, designers, business elites, long-term computer users, frequent business travelers, pregnant mothers who are anxious during pregnancy, babies who have difficulty sleeping, etc.