$7.99 - Rechargeable LED Lighted Beanie Cap
https://www.amazon.com/gp/product/B018VLDPLU/?tag=vcf4ever09-20

     

• One Size fits all, Unisex Knitted Hat with 8 Built In and Removable Rechargeable LED Light, it can light the distance up to 30 feet away
• Easy to Charge - Offer a standard USB port for charging battery, you can charge it in car charger, computer or portable power bank, NO BATTERIES TO REPLACE! Say goodbye to your batteries
• Easy 1 button controls LED lights - 1 White Light + 1 Red and Blue Flashlight
• Compact size, light weight; Arrives Ready To Go, Just Switch It On And Put Away Your FlashLight
• Long lasting 8 LEDs with 120 lumens of light - Last Up To 4 Hours Of Continuous Use Or 68 Hours Of Realistic Intermittent Use

Hiếu kỳ lụm một cái về.
Pretty thick beanie. Has 200mAh rechargeable battery. Plug directly to USB port.
120 lumens not very bright but good enough within 7 ft.
Happy wt this so far.

Đội mấy cái này có khi nào bị nổ không vậy anh? Thấy ghê quá

 (dontknow) Removable LED pod construction thấy OK.