Strong Metal Build & Backup Light: Made from aircraft grade aluminum alloy + for lightweight durability ( 320g) The built in LED provides constant / flashing functions, helpful for low light conditions or outdoor trips Advanced Cooling & Quick Response: Features semiconductor cooling technology that rapidly reaches 16°C for immediate comfort Adjustable Settings & Portable Size: Change wind intensity smoothly using the side control ( 1% 199% variation Flexible Multi Position Design: With a 90° adjustable head, it transforms between handheld, desktop, or wearable preferences ( includes strap Extended 6000mAh Power & Smart Display: Built with two premium 21700 batteries ( 6000mAh) for long lasting use The digital screen shows current power stage and setting particulars, providing up sixteen hours in basic mode for continuous outdoor activities