RF 3D Glasses, Active Shutter RF 3D Glasses Rechargeable Suitable for RF 3D TV Projectors, RF 3D Eyewear for Sony Epson Toshiba Sharp, Compatible with TDG-BT500A, SSG-5100GB, AN3DG40Tips for RF 3D Glasses: Please make sure the distance between the 3D glasses and the 3D device is less than 19.5 inches/50 cm when pairing. Press the switch button, the green LED indicator will light up continuously for 3 seconds, the glasses are powered on, and pairing will start. Some brands of 3D devices will display "3D glasses connected", which means the pairing is successful; some brands of 3D devices will not display anything, but after pairing, the 3D glasses work normally, which means the pairing is successful. If pairing fails, the 3D glasses will automatically turn off. You can press and hold the switch button for more than 1 second to re-enter the pairing state.RF 3D Active Shutter Glasses Specifications: 3D glasses type: Active shutter glasses Sync: RF Receiving distance: 6 meters (typical) Display Compatibility: 3D RF TV / 3D RF Projector Response time: 2ms / 0.5ms Ambient temperature: 0C - 50C Storage temperature: -30C - 70C Working humidity: 20% - 80% RH Atmospheric pressure: 86 kPa - 106 kPa Size: Adult Contrast ratio: 1000:1 / 200 Field Rate: 148 Hz Working current: