The Cisco Wireless IP Phone 8821-EX is engineered for use in challenging environments, offering a combination of Wi-Fi and Bluetooth connectivity. With a 2.4-inch color display, this phone provides easy navigation and visibility. It boasts an impressive battery life of up to 11.5 hours of talk time and 145 hours of standby time, ensuring reliable communication throughout the day. The device is IP67 rated for dust and water resistance, making it suitable for various industrial applications. Additionally, it supports High-Definition voice for exceptional audio quality and includes a full-duplex speakerphone for hands-free communication. The phone is compatible with third-party Bluetooth headsets and features a 3.5-mm headphone jack for added versatility. Its rugged design meets MIL-STD-810G standards for shock resistance, ensuring durability in tough conditions.