The Grandstream WP820 Portable Wi-Fi Phone is a versatile VoIP phone that allows for convenient communication on the go. With a sleek silver design and cordless handset, this phone is perfect for business professionals who need a reliable and lightweight device for their travels. It offers basic conference call capability and has a phone standby time of up to 150 hours, ensuring that you stay connected even when you're away from a power source. This phone is compatible with UCM6202 devices and is powered by a lithium-ion battery for added convenience.