DS-MCW409 with 64 GB storage for long shifts: 2K video with a 148° view, infrared and white light, SIM card for live upload and GPS position to HikCentral, two microphones, laser pointer, SOS and push-to-talk, removable 3300 mAh battery. The SE version has no internal sub-battery, so switch off before swapping. Scroll down for details.