Sufficient quantity and convenient design: you receive 30 LED flashlights with 30 battery strips. Please remove the protective film from the battery before use. The quantity is sufficient for easy use and sharing. The headworn design makes it easier to read, work, and explore. A bright headlight with three lighting modes: this bright headlight uses COB LED lamps to emit 800 lumens of light, providing a 160-degree wide beam to illuminate a large area. The headlight has three white light brightness modes: high, low, and flash, which can be adjusted according to the scene and usage requirements. Anti-slip and adjustable: the headband is lightweight, soft, comfortable, and anti-slip, bringing no heavy burden to the head. The size is approximately 6 x 4 x 1.7 cm / 2.36 x 1.57 x 0.67 inch, portable and flexible, suitable for different users, including adults and children. The product can also be worn on the wrist or other locations. Waterproof: LED headlights are made of high-quality plastic housing and switch, offering waterproof and leak-proof performance for reliable use in various conditions. Suitable for running, walking, cycling, hiking, camping, fishing, and reading at night. Practical gift: portable and adjustable features make these headlights a practical gift for fathers, partners, boyfriends, and night runners on Christmas, birthdays, Valentine's Day, or other occasions. Color: blue + black Material: plastic Package Contents: 30 x head lights Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.