[DETAIL] Function 1. Time, week, date and temperature display on the same screen 2. Adjustable brightness,3 levels of brightness adjustable 3.2 Group of Alarm Clock 4. Timing function 5.12/24H switching,ahrenheit and Celsius switching 6.daylight saving time Product Details Size:18.2*6.6*3.5cm/7.16*2.6*1.38inch Temperature Range:-10-50℃（14-122℉） Power:It can be powered by Plug in and battery. Package:1xDigital Wall Clock 1 USB Cable 1x Use manuals [ATTRIBUTES] - Battery Included: No - Hign-concerned Chemical: None - Is Smart Device: No - Battery Included: No - Hign-concerned Chemical: None - Is Smart Device: No - Form: Single Face - Function: Temperature Display - Length: 182mm - Width: 66mm - Shape: SQUARE - Diameter: 190mm - Weight: 225g - Model Number: 551 alarm clock - Style: Modern Style - Motivity Type: Digital - Display Type: DIGITAL - Feature: Calendars,LUMINOVA - Material: Plastic - Origin: Mainland China - Screen Type: LED - Type: Alarm Clocks - function 1: week display - function 2: date display - function 3: Adjustable brightness - function 4: timing function - function 5: temperature display