Manufacturer Specifications Camera Image Device: 1/4 CMOS TV system: PAL- 628x582 Resolution Horizontal Definition: 380 TV Lines Angular Field of View: 45 deg Minimum Illumination: 2 Lux 6 Built In LED Lights White Balance: Auto S/N Ratio: 52dB Transmission Frequency: 2.4GHz Recommended Max Range for Objects: 10~30mm (auto focus) Transmission Range: 10 Meters Power Source: Built In Rechargeable Li-ion Battery Dimensions: 215mm x 26mm x 25mm (L x W x D) Receiver Receiving Frequency: 2.4GHz Intermediate Frequency: 480MHz Frequency Stabilization: +/-100KHz Demodulation Mode: FM Antenna: 50ohm SMA Receiving Sensitivity: <-85dBm Power Source: DC 5V Dimension: 70mm x 85mm x 20mm (L x W x D) Channels Available: 4 Channel Select for Multiple Cameras USB to Computer/AV OUT Wireless Dental Camera - AV or USB Connection. Inter-oral camera with a wireless transmitter built in for ease of movement while using the camera. This wireless dental accessory comes with both a high 1.3MP camera for high resolution video or still shots as well as a 2.4GHz wireless receiver that can be plugged into a TV using the AV connection or into a computer via USB. A great scientific tool, get a real good look at what is going on inside a mouth with this device, or get a close in view of skin or hair without the bother of wires and their limitations. A easy to use device, perfectly suited from everyone from dentists, to teachers, to just plain curious people, and available at a super low price that only gets better the more you order.