The Honeywell 1-Week Programmable Thermostat (RTH221B1039) is a white, rectangular-shaped thermostat with a digital control style. It is wall-mounted and powered by batteries, making it convenient for home use. With programmability for 7 days, this thermostat offers energy savings and comfort control for your space. The digital display makes it easy to read the temperature settings, and its compatibility with various systems makes it a versatile choice for different heating and cooling setups.