2.4GHz 7" LCD Monitor 4 CH Digital Wireless Wi Fi Cameras Receiver P2P function DVR Security System 4 Channels Home Video 420 TV Lines Zero Interference Wireless Security with 100% Privacy & SD Recording 100% privacy from a secure, encrypted, point-to-point signal Zero interference from Bluetooth, web routers, cordless phones and is truly Wi-Fi friendly Clearer picture, better sound, every time 7*24 hours emails;Please buy with confidence :)