Feature: 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, reable 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 dont 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. Specification: Item Type: DLP Link 3D Glasses Material: PC Color: Black and Blue Battery: Lithium battery (included) Capacity: 80mA Light Transmittance: 38%±2 Contrast Ratio: 1000:1±200 Synchronization Frequency: 96/100/120/144Hz Synchronization Method: White DLP LinK 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) Package List: 2 x DLP Link 3D Glasses 2 x USB Charging Cable 2 x Clean Cloth 2 x Manual  All the items will be dispatched within one business day by Airmail after the payment is clear. Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery. We appreciate your patience if you havent received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel to contact us via ebay message instead of leaving negative/neutral feedback or opening a dispute. We will do our best to solve any problem(resend or any missing item). Customs duty is obligation and liability of citizens in your country, so buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs. 1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties. 2. duties,taxes,and s are not included in the item price or shipping fee. 3. The duties are buyers responsibility.Please check with your countrys customs office determine what these additional costs will be prior to your purchase. 4. All disputes arising from the duties will be submitted to ebay for solution. 1. Any questions, pls. contact us via ebay message or email us.We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails. 2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 " in very area 3. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.