1. Using high-quality ABS sand molding.2. The item is small in size, easy to use and carry.Adjustable headband, comfortable to wear, not easy to deform.3. The headlamp is lifelong waterproof, can be used in rainy days, but can not replace water.4. The wheel rotates 30 degrees, convenient to control the lighting angle, to meet the needs of various lighting environments.5. Suitable for hiking, camping, teaching, searching, hunting, daily carrying, night riding, caving, night fishing, patrol, etc. Specification: Material: ABS, Product Size: 9.8*5.8*3.2CM, Packing Size: 18*6.8*6.3CM, Product Weight: 138g, Packaging Weight: 172g, Lamp Bead Type: T6+COB, Working Voltage: 3.7v, Battery: Built-in 1800mAh Lithium Battery, 5 gears, Strong Light Flickering - Low Light Flicker - Cobs trong light Blinking - Cob redlight Blinking, Waterproof Level: Life Class Waterproof, USB Charging.