Product parameters: Product size: 34*60mm Weight: 35g Observation range: 3 m and above The lenses are coated with blue film Magnification: 12 times Field of view: 16 degrees Objective lens diameter: 18MM Exit pupil distance: 2.3mm Eye point distance: 10MM Selling point: 1. The product is very convenient and simple to use, and easy to disassemble, stable and anti-skid 2. The product is equipped with optical glass lens comparable to professional camera, with high penetration and wear resistance, high definition and no dark Angle 3. Focus can be carried out by manual fine-tuning to make the picture clearer. Clockwise rotation can make the distance clearer and counterclockwise can make the near place clearer The product is very convenient and simple to use, and easy to disassemble, stable and anti-skid The product is equipped with optical glass lens comparable to professional camera, with high penetration and wear resistance, high definition and no dark Angle Focus can be carried out by manual fine-tuning to make the picture clearer. Clockwise rotation can make the distance clearer and counterclockwise can make the near place clearer Made of high quality advanced glass and shell, durable and portable, universal detachable clip into your phone steady. It can be easily placed in your bag or handbag. This Telephoto Lens is the perfect companion for traveling anytime and anywhere; the necessary equipment for traveling and outdoor exploration.