Telescopes for Kids Beginners 4K 10-300X40mm Super Telephoto Zoom Monocular Telescope with Tripod Smartphone Holder for Beach Travel Bird Watching Camping Hiking

Specification :Model: 10-300x40Effective diameter of objective lens: about 30mm/1.3inMagnification: 7-17 times (corresponding to adjustment level 10X100)Eyepiece diameter: about 22mm/8.27inExit pupil diameter: 4.2-1.7mmExit pupil distance: 14-12mmActual field of view: 230-110FT 1000YDSActual field of view: 4.4-2.1 degreesThe shortest focusing distance: 2.5mSize: about 173/128x43mm (stretching and shrinking)Weight: about 300gPrism: BAK4 prismCoating: FMCColour: blackEye mask: rotating eye maskWaterproof: yesTripod can be connected: yesWhether to connect the mobile phone: yesUsed for: racing, beach, bird watching, boating/yachting, horse racing, outdoor activities, sports, drama, travelMaterial: optical glassType: monocular Packing List:1 x 10-300X40MM Monocular Telescope1 x Tripod1x Photo Clip

• Easy To Operate: There is a smart phone holder and a tripod connector at the bottom of the monocular, and the bracket can better adapt to the phone. Manual zoom monoculars can easily and quickly get the best viewing effect, and also allow you to take clear and beautiful photos from far away.Professional Design: The telescope adopts a retractable manual focusing lens design