... Mini Speaker DVR with Hidden Night Vision Lens, 2 inch TFT LCD, Can Play MP3, MP4 This product is the perfect combination of security ... Pins USB, USB 1.1/2.0IR LED wavelength940nMBattery1000mAH, Compatible with Nokia Li Battery BL-5CCharging voltageDC-5VWorking temperature-10°C ... -SD card1 Piece(option) The Unique Mini Speaker Hidden DVR with Hidden Night Vision Lens, 2 inch TFT LCD, Can Play MP3, MP4