Features: 100% brand new and high quality Wave induction - with a side wave induction sensor and one touch buckle,simple to work outdoor when wearing this headlamp. Wide Angle view - Wide beams LED provide a 230 degree view with no dead angle in front. Long Distance - In addition to wide angel view provided by the wide beam LED, the Separate side LED can light up to a long distance of 100m/3937in. Safety lighting - Light up the user , front ground and the surrounding of the user to ensure the safety and avoid accident.Durable and stretchable headband with silicone lamp shell is adjustable to any head size,Wearing on the head has no weight-bearing feeling, the whole is mini and light, simple to carry, waterproof and sweatproof, and easy to clean. Full Visual Design - Applicable to various scenarios such as running,camping,hiking,fishing,bicycling,dog walking,reading,outdoor recreation,emergency etc,It's also an excellent choice as a gift. Specification: Material: ABS WaterproofIPX4 Charge Time4H Usage Time3-8H Charge ModeUSB Max Lum350 Lum Size: 10x3.5cm/3.94x1.38in Package Includes: 1 Pcs LED Headlamp. note: The battery is included, so you don't need to buy it yourself. Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you