... .Micro SD card 1-8GB pendant mini dvr camera is a beautiful pendant and a hidden camera(GC-A620) 1) Main Functions: recording ... resolution,30fps 4) Dimension:40*17.5*10.5mm5) Battery type:Lithium-ion,100mA6) Battery recording time:about 2 hours7) USB ... / XP/ Vista or above (windows98 is excepted)9)Accessories:pendant camera,user manual,USB cable,a hold-chain