Violent Blower Mini Turbo Jet Fan Handheld Brushless Motor 110000 Rpm Adjustable Speed Industrial Du

Overcharging protection board to prevent overcharging and short circuitDischarge cannot be achieved through the protective board (as the protective board will limit the discharge current)Please charge in a timely manner when there is no power to avoid power loss.!!! Be careful not to place your fingers and hair close to the air intake, and keep from combustible materials during charging.note: The factory batches are different. If there are slight differences in the appearance of accessories, it will not affect the use of the product.Battery 21700x2 4000mAh 7.4vElectric regulation: 30A, adjustable speed, violent startBattery: 21700 High rate battery 40A dischargeCharging: Type-C 15w fast charging supports Qc protocolMaterial: plasticcolour: BlackPackage Contents: 1 x Turbo Jet FanOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.