... ,Used as fashion polarized sunglasses when remove the video part6,Sleek ergonomical design, comfortable wearing, light ... -16Khz, SNR >85db Video Input: Mixed Video InputVideo format :NTSC/PAL/SECAM Automatic SelectionSound: Double-channel stereoOperation Temp : -5 ... °C to 40°CAccessories : Sunglasses,Video Module,Nose clips,Control ...