new all-in-one solutions. it is a 2.4ghz mini wireless camera, and it is a lcd monitor with built-in receiver, it is a mp3 / video / photo player, and most importantly, it is also a video recorder, it can support wireless camera recording and cabled av recording tv programs, and real-time clock display during video recording. pvr specification: .5" tft lcd (882x228 resolution). video format: mpeg-4,avi (640 or 320 at 30fps) mp3,wav. recording: avi format mpeg-4 video, support both pal and ntsc. built-in memory: 64mb. memory support: sd: 16m to 4gb./ usb-disk storage up to 20gb. built-in high-capacity polymer lithium battery, about 5 hours play time . usb 2.0 and otg interface supportable. frequency: ch1=2414mhz; ch2=2432mhz; ch3=2450mhz; ch4=2468mhz. this receiver can work with all of our 2.4ghz wireless camera. more surveillance products info pls visit our website at www.szkws.com