S.H. Rechargeable Bluetooth Ultra-thin Flexible Soft Screen Hat

Product information:
Material: 100% cotton hat LED display
Language setting: multi-language (Chinese/English/Korean/Japanese and other multi-language)
Input voltage/current: 5V/1A
Connection method: Bluetooth mobile APP (supports | OS and Android systems)
Battery Type: 450mAh lithium battery (USB charging)
Charging time: 3 to 4 hours
Working hours: 5 to 6 hours
Product Size: 70 * 170mm