The gadget is a Pandaar wireless intercom system, which includes:
Intercom Unit: A white, wall-mountable telephone-like device with buttons numbered 0-9, used for communication.
User Manual: A small booklet providing instructions for operating the intercom system.
18650 Battery: A rechargeable lithium-ion battery that powers the intercom.
Charger: A power adapter with a USB cable for charging the battery.
This system is designed for wireless communication within a range of up to 3280 feet and features adjustable volume. It is suitable for use in homes, offices, and warehouses. The system operates on a 2.4GHz and 433MHz frequency and is expandable with additional handsets.