Upgraded Memory Dual Fans: Switch one or both fans to run by long pressing the power switch at . The memory function remembers your requirements. You can enjoy dual fan dual cooling without repeated and complicated adjustments Powerful Speeds: This wearable fan is equipped with a powerful motor speeds adjustment to get a more personalized airflow that effectively dissipates heat and dries sweat Colour:Black Material:ABS+Silicone Package Contents: 1 * Small fan 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.