1. Multifunctional all in 1: digital alarm clock connects with bluetooth very easily. Suitable for party, sport and outdoor activities. This mirror alarm clock has 5 groups of alarms which can be set and 8 musical ringtones can be selected. You can set 3 different alarm times in a day, so you don't have to worry about setting alarms frequently 2. Two power supply methods: 1. Can use USB charging to use alarm clock, support DC5V / 1A / 2. Can install 1 x 2000mAh 18650 lithium battery (Note: The product is shipped without 18650 rechargeable battery, please buy it yourself) 3. Use WeChat Mini Program to automatically connect the alarm clock. Also supports IOS, ANDROID APP. Synchronization of time, date and mobile phone. All settings are made on the phone. Start your journey smart life easily and quickly 4. This alarm clock has three flexible display modes: 1. Time and temperature display on the same screen 2. Hours, minutes and seconds display on the same screen 3. Temperature and temperature display switch date cycle. 5.Size: length * width * height: 150 * 40 * 70MM / 5.9 * 1.57 * 2.75 inch, packing list: main unit + charging line + user manual. Creative and modern multifunctional design makes it your best gift for any occasion, it is completely portable and easy to store. Perfect for the home, spa, dorm rooms and nursery. Also allow the couple to create a romantic / surprise atmosphere.