Swann ADW-200 - Digital Wireless Security Kit - Zero Interference Wireless Security with 100% Privacy Clearer picture, better sound, every time No interference from Bluetooth, web routers, microwave ovens, cordless phones and is truly Wi-Fi friendly 100% privacy from a secure, encrypted, point-to-point signal Perfect for home or business monitoring, screening visitors, keeping an eye on family etc Installing wireless has never been easier, just plug & play