2.4GHz Wireless Camera With MP4 Recordable Wireless Receiver1. 2.4GHz wireless color camera2. 2.4GHz wireless with 2.5“TFT LCD monitor receiverFrequency :ISM 2.400 – 2.483 GHzCH1 = 2.414GHz ; CH2 = 2.432GHz ; CH3 = 2.450GHz ; CH4 = 2.468GHz3. Moving (motion) detection with buzzer alarm function enabled in camera4. Moving (motion) detection and auto record function enabled in receiver5. Receive Video record and play format：MEPG-4 ASF6. Receiver format：MP3/WMV/WAV7. PC interface：USB2.08. Support SD card： 2G SD card (Max)9. Transmitting Range:：500m/1500ft10. Built -in Lithium Battery