•Name: Monocular
•Eyepiece size: 20mm
•Multiple: 10 times
•Objective lens size: 400mm
•Optical system: roof system
•Waterproof performance: life waterproof
•Focusing system: objective lens and eyepiece dual adjustment
•Product weight: net weight 243g including packaging 295g
•Lens: Eyepiece optical double resin objective lens optical laminated glass
•Product size: 153*53*43mm