1. Edit the text pattern through the mobile APP, if you want, take out the mobile phone to change the content of the badge anytime and anywhere. Say goodbye to tedious operations that need to be connected to a computer. 2. Text input / multiple languages / built-in animation / DIY graffiti / multiple display effects / music rhythm / multi-device operation / intelligent timing / incoming call flashing. 3. Bluetooth connection, mobile APP can connect multiple devices at the same time for simultaneous control. 4. High-definition display, using high-quality LED lamp beads, high brightness, no stroboscopic, 576 lamp beads, more abundant display content, resolution: 12x48. 5. Two ways to wear:a: The badge has a pin, which can be directly attached to the clothes.b: There is a magnetic sheet on the back of the badge, you can put the clothes between the magnetic sheet and the badge, and use the magnet to attract the badge on the clothes. USB charging interface, built-in rechargeable 200mAh lithium battery can be for 3-5 hours, and the working time is 6-10 hours. Wide range of applications, with eye-catching LED labels, it help you attract more attention, including the idea of displaying your name, mood, reminders and advertisements on exhibitions, trade shows, parties, night clubs, hotels, Light up anything you want. Name: LED badge Luminous color: A: Blue light Charging time: 3-5h Working time: 6-10h Voltage and current: 5V/1A Power supply mode: USB charging Built-in battery: 200mAh Colour:Black Material:plastic Package Contents: 1 x Digital Badge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.