The moisture meter can quickly measure the moisture content of the grain. 1. HIGHEST PERFORMANCE: 3D glasses are equipped with the latest active shutter technology, ultra-fast 144Hz refresh rate, high resolution, no ghosting and no flickering, providing a great 3D viewing experience. 2. ONE-Touch Switching: Active 3D shutter glasses support one-touch left and right eye switching, which is very convenient and does not require DLP projector support. 3. LONG BATTERY LIFE: Active 3D shutter glasses can be charged via USB; built-in lithium battery lasts for about 30-40 hours after 2-3 hours of charging. 4. WIDELY COMPATIBLE: Active 3D glasses with excellent 3D effects, compatible with 96-144HZ and supporting all major brands of 3D projectors with DLP LINK technology (regardless of brand). 5. LIGHT AND PORTABLE: Active shutter glasses are lightweight, portable and can also be worn in front of regular glasses, making them very comfortable to wear for a long time. Please allow slight dimension error due to manual measurement. Item Type: 3D Glasses Material: plastics, electronics Contrast ratio: 1000:1 , - 200 Synchronous Frequency: 96Hz 100Hz 120Hz 144Hz Rated operating current: less than 1,2 mA Room temperature response time: 2 ms, -0,5 ms Light transmittance: 38% , -2% Viewing Angle: 30 Degrees (L R15 Degrees) Synchronization method: white DLP link Battery type: Built-in 3,7V 45mAh Lithium battery (included) List of packages: 1 x 3D Glasses 1 x Charging Cable 1 x Glasses Cleaning Cloth 1 x Carrying case 1 x Manual Plug and use.