Constant temperature hand warmer usb charging fast heating mini portable hand warmer power bank two-in-one

Heating mode: electric film type Brand: Neutral Power mode: USB Hand Warmer Type: Hand Warmer Packing quantity: 30 Whether the patent source: no Color: classic white, lovely pink, green grass blue Product category: warm hand treasure Model: NS20 Built-in battery capacity: 4000mAh-6000mAh (included) Rated power: 10 Whether built-in battery: built-in battery Product Certification: FCC, CE, ROHS Product net weight: 210g Endurance: 6-8h (inclusive) There is an authorized private label: No Packing volume: 1554.249cm Rated voltage: 5 Whether cross-border export exclusive source: Yes Gross weight: 370g