USB powered convenience This digital projection alarm clock runs on USB power. Simply plug it into a laptop or a power bank for reliable operation, with no batteries to replace. Clear time display plus practical features It shows the current time and includes a snooze function for easy wakeups. A temperature display keeps you informed about the room environment. Flexible projection for easy viewing The 180-degree rotatable projection lets you project the time onto the ceiling or a wall. Adjust the projection direction to suit your room layout and personal preference. Stylish compact design With a modern, compact form, this clock fits neatly on a nightstand or desk while preserving valuable space and complementing a wide range of decors. Use scenarios - Bedroom nightstand: easy visibility in the dark with ceiling or wall projection, powered by USB from a laptop or power bank. - Office or study desk: time and temperature at a glance, with snooze function to manage breaks during work or study sessions. - Travel or dormitory hotel room: portable, USB-powered setup that requires no batteries and adapts to USB outlets or power banks available in hotel rooms or campuses.