Features: 1. Suitable For Wearing With Different Neck Circumferences, Cold Compress & Fan Double Enjoyment, Folding Design For Easy Carrying2. Enjoy Coolness With One Click, Symmetrical Cold Compress, 3. The Bladeless Turbine Is Light And Does Not Mess Up.4. Relieves The Stuffiness Of The Summer Heat, And The Mask Cools In Summer.5. Silent Blade Upgrade Soft Operation.1. Working Voltage: DC5V/2A2. Maximum Power: 10W3. Charging Indication: The Red Light Flashes When Charging, And The Full Red Light Goes Off4. Battery: 5000mah Polymer5. Cold Compress: Three Gears (Drop 10-15C/Drop 7-10C/Drop 4-7C)6. Maximum Power: About 3 Hours7. Fan: Three Gears8. Charging Interface: Type-C9. Battery Life: (High-Grade) 2 Hours10. Control Mode: Button11. Size: 18.5 x 17.6 x 6.7cm12.Color: Blue & Gray13.Material: ABSPackage Contents:1 x Main Unit Fan1 Cord1 x Chinese And English Instruction ManualOnly 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.