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1. Material: Plastic 2. Weight: 14 g 3. Power: 1 w 4. Dimensions: 4 x 2.3 x 2.6 cm 5. Features: Long service life, bright beam, can clamp any type of glasses on the edge of the glasses and in the glasses, can adjust the angle at will, can rotate 360 degrees, small size, light weight, has good mobility, no matter wearing How does the posture of the person change, the direction of the LED light rays and the line of sight are always the same 6. Application scenarios: Learning, office, accessories 7. Power supply: 2 x CR2032 button batteries
