If you want a spy gadget that has everything you need in one time device then the u 838 is certainly for you it is packed full of features making it one of the best spy gadgets on the market it has full hd recording 1920 x 1080 night vision ir and motion detection recording as well as this you can take pictures and audio recordings like a dictation all the recordings are then saved on to a micro sd card up to 32gb not included for you to watch back later