The neck-mounted mini fan conditioner has two built-in semiconductor refrigerators and two high-speed axial flow motors, which have excellent cooling effect. The extra noise while running is only around 25 decibels, which ' distract or annoy you The size can be adjusted to fit everyone, children and pets can wear it, and it is still comfortable to wear even for a long time. Stick with strong, durable materials and a durable polymer battery for increased charge cycles and greatly improved durability This neck-mounted mini air conditioner is small and stylish, easy to carry size: 18.7 x 11.8 x 5.25cm Material: ABS colour: white Package Contents: 1 x Neck hanging fan 1 x data cable Only 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.