Fit most kinds of mobile phones. Applicable to watch the game, concerts, tourism, observe animal lovers, news reporter long-distance-shooting etc. Special mobile phone clamp, tight clamping force, strong bite force. Show children the micro world, satisfy their curiosity, and stimulate their interest in learning. Comes with LED lights, No APP needed, just clip it on phone lens and you can use it. Specification: Magnification: 400X Distortion: -1％ Closest focusing distance: 0.6mm Battery: 3.7V, 110mAh Material: aluminum alloy Color: black Package size: 120 * 60 * 50mm / 4.7 * 2.4 * 2.0in Package weight: 92g / 3.2ounce Package Included: microscope*1 If you have any questions about the product, please contact me, we will contact you within 24 hours and give you a satisfactory answer.