Built-in -capacity 1800mAh rechargeable lithium battery is suitable for charging with USB-powered devices, and the capacity meetsAir Volume Level 3: Weak wind-Natural wind -.Dual-Turbine Motor:The double structure turbine motor ensures energy-efficient yet with a powerful flow, it's designed to circulate air more quickly from 4 air inlets without needing the use of extra power.Wingless Design:You 't have to worry about hair being caught by fan blades.Suitable for a of occasions, shopping, cycling, sports, playing mobile phone, etc.Product name: space capsule bladeless hanging neck fanProduct model: M11Battery capacity: 1800mAh (conventional)Input voltage: 5VInput current: 1AProduct size: 206x170x64MMColour:pinkMaterial:ABS+SiliconePackage Contents:1 x Neck Fan1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.