详细说明：

3.5*40的资料
物镜规格, mm: 24。
放大倍率,2 x:加增倍镜头 3.5X分辩率,
出瞳直径, mm: 12。
漆黑最大可视清楚距离, m: 400米。
红外发射器: 单发射器(双发射器)
发射器功率, m: 100米。
电源: 3v (CR 123 A)
体积, mm: 225x123x72
重量, Kg: 0.8

不安装增倍镜子是2倍，增加增倍镜子后3.5倍

以下官方英文资料：

Detailed Description

Yukon Advanced Optics' engineers kept versatility and comfort in mind when creating the Viking series of night vision binoculars. Each of the Viking series of night vision binoculars are similar yet different.   The Viking RX 3.5x40 is the most powerful night vision binocular in the Viking series. It comes with removable, individual, collimated, doubler lenses, and can be transformed to a 2x24 unit by removing the 40mm lenses.   The Viking RX 3.5x40 night vision binocular has a magnification of 3.5x and an objective lens of 40mm. The unit's eye relief of 12 mm allows for comfortable viewing while the 400 m to 500 m range of detection makes this unit perfect for long distance viewing.   Throw the ergonomically-designed, rubberized body around your neck for a long expedition; the lightweight (21 oz.), compact (without doubler: 6.9 x 4.8 x 2.8 in.; with doubler: 8.8 x 4.8 x 2.8 in.) unit is surprisingly comfortable, making your viewing experience that much more enjoyable. Like all Viking models, the RX utilizes a dual eye diopter adjustment with central focusing, and a wide field of view (30 degrees with doubler and 15 degrees without doubler).   The water resistant Viking utilizes a soft, one-piece eyecup to prevent external light distortion and light leakage from the device, allowing the user to remain hidden in the night.              Uses: Observation Varmint Hunting Hiking Camping Cave Exploration Commercial and Sport Fishing Boating Law Enforcement Search and Rescue Surveillance   Features: Rugged Rubber Armored Body Ergonomically-Designed Body Lightweight Compact Single Built-in IR Illuminator Eclipse Lens Cap System Yukon Quality Certified Tubes Durable     Included Accessories: Carrying Case Neck Strap Viking Magnification Doubler   Model Number: 25024