Programmable: Download the programming software according to the user manual, complete the programming, and create your own text, numbers, dynamic patterns, etc. Wide Application: Light up whatever you want. With eye-catching LED tags, it helps you attract more attention, display your name, mood, reminders, and advertising ideas at exhibitions, trade fairs, parties, nightclubs, hotels. Detachable Magnetic Module: Easily attach to refrigerators, metal plates, or magnetic items without damage. It can also be securely attached to clothing to prevent loss. High-Capacity Battery: Built-in rechargeable 250mAh lithium battery. Can last for 14 to 16 hours at minimum 25% brightness and 10 to 12 hours at maximum 100% brightness (4 levels of brightness adjustment). Takes about half an hour to fully charge. Portable and Lightweight: The LED name tag is compact and lightweight, making it convenient to carry around. Perfect for business promotions, personal expression, or creative displays. Item Type: LED Name Tag Material: Electronic Components, ABS Weight: Approx. 46 g / 1.6 oz Product Size: 9.5 x 3 cm / 3.7 x 1.2 inches Built-in Battery: 3.7V 250mAh li po battery (included) Light Source: Blue light Charging Method: USB micro 5V Control: Switch Program: PC web program (see manual for details)