Power mode: Lithium batterySpecification: othernoise: 45-50dB(Contains)Applicable area: otherWind speed gear: 3filesItem number: F77M7JJJ67MJ9JMain sales areas: otherWhether there is a built-in battery: Removable batteryBuilt-in battery capacity:2500mAAh(inclusive)Is it a patent source?: noMotor type: brushed motorNumber of fan blades: No leavesShell technology: othersize: Default itemFan classification: spray fanstyle: otherFan blade material: plasticProduct net weight: otherAppearance size: otherBattery life: 3-6h(Contains)Additional features: USBwire charging