Feature: 100% Brand new and high quality; Our neck fan has 4000mAh capacity battery and lasts 12 hours at most. The personal wearable fan motor has been modified to produce extremely low noise, so that you are not disturbed at work. Three-speed settings could meet different personal needs. The hanging neck fan has dual turbine, producing stronger airflow quickly, which cools you down within 3 seconds. The bladeless hands free neck fan won't jam your hair. Specification: Material: ABS Color: Green,Blue,Pink Battery: 4000mah(2000mah each side)/3.7V Power Supply: DC 5V/1A Charging Time: 4h Working Time: 6-12h Product Weight:240g Product Cell: 18650 Lithium Battery Power Supply Product Size: 190*178*58mm Fan Power: 5W Power Supply: USB Charging Package Content: 1x Neck Fan 1x USB Cable Packed Safely in a Retailed Box. Notes: Please allow slight dimension difference due to different manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.