The e of the monoscope allows it to be used in the harshest weather conditions.br/ The rubber armor es it comfortable to use 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 provide you with a viewing experience.br/ This type of sight 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 dial of the upper focusing hand until it is clearly visible.br/ br/ 100x30 spotting telescopebr/ Product color: blackbr/ Product Type: Roof Monotubebr/ Magnification: 10-100 timesbr/ Eyepiece diameter: 18mmbr/ Objective lens diameter: 30mmbr/ Exit pupil di: 14-17.1mmbr/ Market elevation angle: 4.6°br/ Market scope: 118m@1000mbr/ Nearest focal length: br/ Relative brightness: 49br/ Evening index: 28br/ Parallax degree: ±5br/ Prism type: BAK4br/ Prism diameter: 16.95mmbr/ Focusing system: middlebr/ Focusing lens: eyepiece, objective lens internal adjustmentbr/ Lens type: all-optical glass lensbr/ Single-sided lens: 6 pieces in 4 groupsbr/ Prism coating: coated silver filmbr/ Lens coating: multilayer green coatingbr/ Waterproof level: IPX7 waterproof and anti-fogbr/ Product weight: 650Gbr/ Product size: 180x70mbr/ br/ notes:br/ Please do not look directly at the sun with a monocular, 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 strenuou