Rechargeable Handheld Mini Fan 4000mAh, 3 Speeds, USB PoweredStay cool anywhere with this portable handheld fan. Featuring a built-in high-capacity 4000mAh battery, it provides up to 15 hours of cordless operation. Ideal for both indoor and outdoor use, the compact size fits easily into bags or backpacks.Key Features:Built-In Battery: Dual 2200mAh rechargeable batteries (total 4000mAh)Long Runtime: Works approx. 615 hours on a full chargeCharging Time: Fully recharges in about 4 hours3 Adjustable Speeds: Low, medium, and high wind settingsQuiet Operation: High-efficiency motor provides strong airflow with minimal noiseDual Use: Can be handheld or placed on a flat surface using the anti-slip basePortable Design: Lightweight and compact, easy to carryUSB Compatible: Recharge using USB charger, power bank, laptop, or car chargerDurable Build: Made from high-quality ABS plasticMotor Power: High-speed copper motor for strong airflowSpecifications:Color: WhiteBattery Capacity: 4000mAhSize: Approx. 16 8.7 4.8 cmWeight: Approx. 290gMaterial: ABSCharging Interface: USBPackage Includes:1 Handheld Fan1 USB Charging CableUsage Tips:Charge fully before first useUse only 5V USB power sources for chargingDo not disassemble or expose to water