Specification: Item Type: DLP Link 3D Glasses_x000D_Material: PC_x000D_Color: Black and Blue_x000D_Battery: Lithium battery (included) Capacity: 80mA_x000D_Light Transmittance: 38%2_x000D_Contrast Ratio: 1000:1200_x000D_Synchronization Frequency: 96/100/120/144Hz_x000D_Synchronization Method: White DLP LinK_x000D_Parameters: Support various 3D technology DLP LinK projectors, for XGIMI ZX4 H1, for JMGO G1 G3 X1, for BenQ, for Acer, for Optoma, for Hitachi, for Philips, etc. (does not support monitor, ordinary, infrared, Bluetooth 3D projector, Ordinary TV) Features: 1[Compatibility]?Support various 3D technology DLP LinK projectors, for XGIMI ZX4 H1, for JMGO G1 G3 X1, for BenQ, for Acer, for Optoma, for Hitachi, for Philips, etc. (does not support monitor, ordinary, infrared, Bluetooth 3D projector, Ordinary TV) 2[Quick Connect with DLP?LINK Projector]?The active shutter 3D glasses use "DLP Link" as their sync method, quickly work with all DLP Link projectors. Built in 80 mAh lithium battery, rechargeable to provide you with long working hours. 3[Outstanding Performance]? Our DLP Link 3D glasses adopt the newest active shutter technology, super fast 144Hz refresh rate, High definition, no ghosting images, no flickering, delivers a great 3D viewing experience for you! 4[Left Right Eye Rotation]?If you have our 3D Active Glasses on and don't see the effect of 3D, just need to single click the "Power Button" again to flip the left and right eye views for synchronizing, very convenient, no need to operate the DLP projector. 5[Lightweight & Comfortable]? Active shutter DLP Link 3D glasses are lightweight and portable to take, also can be worn very comfortably. The DLP 3D glasses come with USB cables for charging, clean cloths for cleaning, manuals for guide. PackageList: 2 x DLP Link 3D Glasses 2 x USB Charging Cable 2 x Clean Cloth 2 x Manual