1. Material: cotton cap LED display
2. Resolution: 12x48 dots
3. Font color: red/yellow/blue/green/white/pink/color, etc.
4. Hat color: red/black/white/blue/yellow/green/pink etc.
5. Display size: 133 x 29 mm
6. LED screen size: 152x32 mm
7. Communication method: Bluetooth mobile phone APP (support IOS system and Android system)
8. Language: Multi-language (Chinese/Korean/Japanese/English and other multi-national voices)
9. Power supply: 3.7V polymer lithium battery (USB charging)
10. Weight: net weight 42 grams
11. Packing list: LED advertising cap x1, USB cable x1, manual x1