NEEWER Professional Battery Grip BG-E5 Replacement Works with LP-E5 Battery + AA Battery Grip Holder + Li-ion Battery Grip Holder for Canon EOS 450D 500D 1000D Rebel XS XSi T1i Built-in small lens and a detachable lens: The spy camera is super Mini, so you can easily hide it without being noticed. This mini spy camera is HD 1920X1080P: high definition for clear and vivid image. One mobile device can connect 4 cameras at the same time. Motion detect Wi-Fi spy camera: HD live feed, push alarm notifications, take photos & videos, micro SD card local storage, remote playback. Loop recording spy camera: when you enable this function, it will over-read the oldest File and continue recording and saving new files even if the Micro SD card is full. Network Wi-Fi camera: use app "I Mini Cam", you can download this app from Google play or scan the QR code on the manual. Wi-Fi camera can work on Android and iOS system, PC, Mac or the other devices (except windows phone).