... sunglasses, camera Sunglasses, portable DVR, mini DVR, with mp3, FM radio and digital camera function Main Features The digital ... pixelsVideo resolution640*480 pixelsVideo Record Speed15-20 FPSAudio play Format MP3,WMA,AMR,WAVFM Radio Frequencies76MHz-90MHz / 87.5 MHz ... Lithium-ion 4.2VBattery Capacity280mAhBattery Support timeVideo record 2.5hours,MP3/FM play 5hoursCharging time3-4 hours ( long time ...