DLP Link 3D Glasses Rechargeable Active Shutter Eyewear — Compatible with LTV-3000 Pro, LTV-3500 Pro, Vanish TV & Other DLP-Link 3D projectors (2 Packs)

Before first use, fully charge the glasses and verify they work. After charging, press the button on the top of the frame; the blue light shows the glasses are powered on. Also make sure the 3D mode on your projector is enabled. If you've completed these steps and still encounter problems, please contact our customer support team for help. Long-lasting rechargeable battery: Built-in high capacity rechargeable batteries deliver up to 50 hours of continuous playback — enough to watch about 15 films on 1 single charge. Ergonomic, lightweight construction: Weighing only 28 Grams and made from soft PC material, these glasses are designed for all-day comfort. The large-frame style accommodates users who wear myopic (prescription) glasses underneath.