【USB Rechargeable & Easy to Use】It can be charged with the included USB cable, and has a continuous operating time of approximately 2.5 hours (in rhythm mode). The main body is ultra-lightweight at approximately 20.6g. It's a clip-on type, so you can attach it at your preferred angle and position. 【3 Selectable Modes】When your mask feels hot or stuffy, use normal mode to blow air outwards from the mask for efficient ventilation. Rhythm mode switches the airflow, providing ventilation that feels more like natural wind. You can select the mode to suit the situation. 【Quiet Design】It uses a motor with excellent quietness, so you can use it in various situations such as commuting, cycling, and during meetings. ❁.。.:*:.。.✽.。.:*:.。.❁.。.:*:.。.✽.。.:*:.。.❁ * Shipping is closed on weekends and holidays. * Immediate purchase OK ◎ * Many other items are also on sale ↓ ↓ #Cherry's Product List is Here ✨☜ * Please understand and cooperate with shipping in simple packaging. * In the unlikely event of a problem, please contact us before evaluation.ᐟ.ᐟ Mask Fan Ventilation Heat Dissipation Dehumidification Deodorization Prevents Stuffiness Heatstroke Prevention USB Rechargeable 3-Level Airflow Adjustment Small Ultra-Lightweight Stylish Cool Summer Cooling Fan Solves Stuffiness Heat Measures Subway Outdoor Work Sports 154010-8