It is both a fan and a light, and it can both charge and hold a battery.

Power supply: Three-in-one power supply mode: a three AA dry batteries for power supply; b three AA Ni-MH rechargeable batteries for power supply; c USB interface for direct power supply (as long as there is a power supply with a USB interface, it can be directly powered); three power supply methods can be used alternately; Note: When using USB power supply, please be sure to remove the dry battery to avoid damage to the battery and product components; when using AA NiMH rechargeable batteries, please do not wait for the power to be completely discharged before replenishing, and replenish it in time when you need to retain more than 10% of the power power, otherwise the battery cannot be charged normally, this is not the reason for the function of the product itself, but the drawback of the NiMH rechargeable battery! !