• 【Multi-function】LED time display, date, ℃/℉ temperature mode.
• 【Self-adjusting Brightness】The brightness is 30% during the period from 7 pm to 5:59 am the next day; from 6 am to 6:59 pm, the brightness is 100%.
• 【Memory Mode】1. Memory travel time without power supply. 2. Without power supply and battery, it remembers the previous clock and various setting modes.
• 【Alarm Function】There are 3 groups of alarm clocks, which can be set according to personal needs.
• 【Voice Control】Press DOWN to turn on the power saving mode, and turn off the display after 15 seconds. When the external sound reaches 75db, it redisplays for 15 seconds.

Specifications:

• Name: LED digital clock
• Model: 668
• Size: 21.5*8.5*3.8cm
• Power: DC 5V
• Material: ABS
• Power cord: USB port, 1.8 meters