11.1v Special battery for wireless hair dryer.
Wireless hair dryer is more convenient to blow hair, small in size, free from the limitation of wire control, easy to carry, and constant temperature design does not hurt hair. The wind will not be too strong, nor will it overheat.
Hair dryers are small in appearance, long in battery life and very practical. Is characterized by wireless portability.
Special battery model for smart bracelet: 11.1V 4400mAh.
Smart bracelet battery model: 18650.
Lithium battery IC: Seiko.