RF 3D Glasses, Active Shutter RF 3D Glasses Rechargeable Suitable for RF 3D TV Projectors, RF 3D Glasses for Sony Epson Toshiba Sharp, Compatible with TDG-BT500A, SSG-5100GB, AN3DG40Tips for RF 3D Glasses: When pairing, make sure the distance between the 3D glasses and the 3D device is less than 19.5 inches/50 cm. Press the power button, the green LED indicator will light up continuously for 3 seconds, the glasses will turn on and pairing will start. Some brands of 3D devices will show \"3D glasses connected\", which means pairing was successful; some brands of 3D devices will show nothing, but after pairing, the 3D glasses work normally, which means pairing was successful. If pairing fails, the 3D glasses will automatically turn off. You can press and hold the power button for more than 1 second to re-enter pairing mode.RF 3D Active Shutter Glasses Specifications:3D Glasses Type: Active Shutter GlassesSynchronization: RFReceiving Distance: 6 meters (typical)Display Compatibility: 3D RF TV/3D RF ProjectorResponse Time: 2ms0.5msAmbient Temperature: 0C - 50CStorage Temperature: -30C - 70COperating Humidity: 20%-80%RHAtmospheric Pressure: 86 kPa - 106 kPaSize: AdultRatio: 1000:1200Frequency: 148 HzWorking Current: