Feature: 1. No dust, no ink, pressure sensitive writing with super clear handwriting, magnetic absorption 2. Desktop calendar LCD handwriting board is a multifunctional assistant. Possess rich features, the date, time, temperature and humidity are clear at a glance. Suitable for schools, offices, homes, etc. 3. You can write your itinerary on the handwriting board of the desk calendar and set the alarm clock to solve the distress that you are easily forget 4. In the home, the product can be used for daily messages, recording things, alarm clock reminders and other life scenarios 5. Suitable for various work scenarios such as calculation work, work memos, group discussions, small blackboards, etc., equipped with a one-click clear function to greatly improve your work efficiency 6. The back support can stand up on desktop, not only beautiful and practical. Handwriting memo support one-click clear and reuse 7. Accurate time display, 12/24 hour system can be switched as needed. Date, week, year can be displayed, alarm clock can be set 8. Real-time accurate display of current temperature and humidity. Temperature can display Celsius or Fahrenheit as customers required Specification: Item Type: Electronic Calendar Writing Board Material: ABS shell Input Interface: Type-C Model: ZH-10 Input: DC5V CD Screen Size: Approx. 103 x 40mm / 4.1 x 1.6in Handwriting Screen Size: Approx. 192 x 146mm / 7.6 x 5.7in Time Accuracy: ±1 Second/day Temperature Accuracy: 0.1℃ Temperature Measurement Range: -50℃-70℃ Humidity Accuracy: 1% Humidity Measurement Range: 10%RH-99%RH Working Voltage: 3V Automatic Temperature and Humidity Measurement Cycle: 10 Seconds Battery: Lithium battery 402020, 120mAh Charging Time: 90 Minutes Handwriting Board Service Life: >50,000 times Alarm Time: 1 Minute. Package List: 1 x User Manual1 x Type-C Cable1 x Handwriting Board1 x Stylus