... 4 Ports USB Hubs Electronic Luminous Alarm Clock with 4 Ports USB Hubs Product DescriptionMaterial: plastic+electronic component ... format selectable),tempreture, year, month,date, week, 3 sets of alarm clocks,snoozing and birthday celebration.3. Multi-color LCD backlight ... 6. Operated by 3AAA batteries. Romantic Fluorescence USB Message Board Clock Electronic Luminous Alarm Clock with 4 Ports USB Hubs