The e of the monoscope allows it to be used in the harshest weather conditions.br/ The rubber armor es it comfortable to wear and prevents the monocular beach from slipping out of your hand.br/ The fixed-point telescope is made on the BAK4 system and a multi-layer broadband green film lens,br/ Whether you are watching a football game, the telescope can bring you a viewing experience.br/ This kind of scenery can not only enjoy the scenery, but also thes. It is an ideal one-handed observation tool.br/ How to use the telescopebr/ 1. The eye must be 2 cm away from the eyepiece and cannot be directly connected to the eyepiece.br/ 2. Aim the telescope at the observation target, and then slowly turn the turntable of the upper focusing hand until it is clearly visible.br/ br/ specification:br/ Observing telescope 12x50br/ 1 x dust coverbr/ 1 x waterproof bagbr/ 1 x cleaning clothbr/ 1 x phone holderbr/ 1 x Aluminum Tripodbr/ 1 x lanyardbr/ Magnification: 12 timesbr/ Exit pupil diameter: 20MMbr/ Exit pupil di: 10MMbr/ Prism system: BAK4br/ Lens Coating: Broadband Green Filmbr/ Objective lens diameter: 50MMbr/ Size: 20x10x10CMbr/ Weight: 445Gbr/ Waterproof and anti-fog: Life is waterproof and anti-fogbr/ Colour: Blackbr/ br/ result:br/ Please don't use the telescope to observe the sun directly, otherwise it will hurt your eyes.br/ If you do not use it for a long time, please keep it in a dry place.br/ It can resist light water, but cannot be used in heavy rain or soaked in water for a long time.br/ The telescope is a precision instrument, please do not drop, squeeze or perform other strenuous exercise.