40X60 high-definition binoculars outdoor camping hunting binoculars monocular tripod mobile phone C specifications: name telescope color black prism material BAK4 monocular technical parameters 40x60 objective lens diameter 40mm prism system roof system focusing method finger and objective lens size 151x54x44mm features: small and light portable design High-definition single-hand focus, high light transmittance supports mobile phone shooting applications: , bird watching, horse racing, hunting, beach, travel, etc. Note: 1. Please allow 1-2cm error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item."All of our products go through strict quality checks. If there is any quality problem or you are not satisfied with the product contact us. We will give you the best solution. "