The 400x mobile phone microscope has a built-in LED light source. The aspherical high-refractive-index lens has a thinner edge, smaller dispersion, and is comparable to lasers, and can resist laser damage. At the same time, the multi-layer anti-reflection film process reduces glare, restores true colors, and provides a 4K high-definition field of view. The product can be used in a variety of application scenarios such as antique appreciation, jewelry identification, skin testing, and children's fun exploration. Magnification: 400X Distortion: 10% Resolution: 300 LP/MM (Axis) 200 LP/MM (Edges) Compatible: 98% Smartphone LED Type: SMD LED beads Battery Capacity: 300mAh Lithium ion Charge: USB-C Color: Black Material: ABS Package Contents: 1 x 400X Mobile Phone Microscope (The inner diameter of the clip has been upgraded to about 10.5mm, making it compatible with more smartphones) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.