This ERA E3000 Video Intercom Handset and Charger Kit is compatible with the ERA E3000 Wireless Video Intercom Kit. This additional handset comes with the same high quality live viewing on the 2.4” colour LCD monitor, with 320 x 240 resolution. The Auto Snapshot function allows you to take a picture of your visitor, providing a record of who was at your door. It has a built in microphone and speaker for convenient hands-free use during two-way audio communication with your visitors outside the door.