The BenQ DGD5 3D Glasses are designed to provide an immersive 3D viewing experience with BenQ's DLP Link-enabled projectors (with 3D Ready function). It draws power from a rechargeable battery and offers 30 hours of run time (continuous viewing) on a single full charge. - Compatible with DLP Link 3D technology - Easy and comfortable to wear - High sensitivity and fast response time - Rechargeable batteries - Suitable for education and home entertainment