Specifications:

• Accuracy: 2ppn, annual error within 1 minute
• Backup battery: CR1220 (not included)
• Dimensions: 22*25*101mm / 0.86*0.98*3.97in
• Display Type: DIGITAL
• Feature: Calendars
• Interface specification: Micro-USB
• Material: Bamboo & Wooden
• Model Number: Finished VFD clock
• Motivity Type: Digital
• Origin: CN(Origin)
• RTC chip: DS3231SN series
• Shape: Square
• Support display: time/date/ week/temperature( -18-75°C)
• Type: Desk Clocks
• Working current: 150mA
• Working temperature: -25~85°C
• Working voltage: DC 5V
• Is Smart Device: No