Specifications: Infrared induction switch, wave-hand induction control, ordinary switch and IR induction switch. Can be directly clipped to the brim, or wear it on your head with the elastic strap. Built-in high-capacity 500mah lithium battery, can work for about 5 hours. Equipped with USB charging line, convenient to charge. Item Name: IR Hat Lamp Light Source: 3Pcs LED Material: Plastic Battery Capacity: 500mah (Included) Charging Time: 2-3 Hours Lighting Distance: 10m Quantity: 1 Pc Features: Durable, Easy to Use, Portable, Useful Size: 4.9cm x 1.1cm x 4.5cm/1.93" x 0.43" x 1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's colour may be slightly different from the pictures. Please allow slight dimension differences due to different manual measurements. Package Includes: 1 x IR Hat Lamp 1 x USB Cable 1 x Elastic Strap