Product: U21 surveillance camera Memory support: 32 Gb Gb Memory footprint: 0.2G / H usage: 230 mAh / hours Source: Portable Bank / USB Outlet Colour: Black Material: Metal + plasticSize:158*26*15mmPackage Contents:1x card pin1x instruction manual Note: Wifi supports remote viewing of mobile phone, USB does not support remote viewing of mobile phone Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm