Basic alarm clock & battery operated clock - This clock is powered by 4 x AA alkaline batteries only (not included), which can keep Constantly Big 1.2'' LED digit time display for more than 12 months.

【Easy Operate】- Designed for simplicity, our alarm clock features a big and clear display, 12-hour / 24-hour format, and provides indoor temperature ... Port and Battery Backup ...

DIY smart clock enthusiasts can personalize GrokClok with extra features like weather forecasts or video screens. You know, alarm clocks can be a little...boring. They tell the time, sound an alarm, ...