6. Before purchase – Since this is a multifunctional innovative designed product, please read the user manual patiently and try to familiarize with its operation. Feel free to contact us and we will provide one-on-one guidance. As long as you are willing to take the time to understand its usage, you will find that it is a very interesting speaker and an excellent gift for kids and friends. 5. Rechargeable Battery - Built-in lithium battery, This clock is operated by USB type C to barrel power cord (please keep USB plugged to power when long time use as alarm color). 4. Bluetooth Speaker Support TF Card: Compatible with all Bluetooth devices. Multiple playback methods: support Bluetooth connection, TF card. The upgraded Bluetooth 5.0 can be easily paired and can be used on mobile phones, Pads, laptops and other devices. 3. Motion Sensor Function: When the speaker is paused for 10 minutes or the Bluetooth is not connected for 10 minutes, the speaker will change to clock mode automatically. And the speaker will be turned off automatically after another 10 seconds. When the speaker detect human body movement, the speaker will be turned on automatically and enter to clock mode. 2. Cool LED Light Flashing - Allows you to adjust from low to high brightness, it's user friendly at night, which won't be too harsh for your eyes. 1. Multifunctional Design Digital Clock Speaker: 4 functions in one product include wireless speaker, digital alarm clock, FM radio and mini mirror. Easy to use, pay less money and gets more product functions.