More contacts, phenomenal sound quality, and features that wow users The perfect desk phone for the modern office, the Poly Edge E400 Series is packed with features and contacts. Built for hybrid working, these phones pair the famous Poly noise reduction technology with cutting-edge design that brings style to any desktop. Smartphone pairing and built-in Wi-Fi on the Edge E450 make this phone a favorite in the office or at home. Two call displays Command your calls and make speed dialing a breeze Juggle multiple calls easily with 8-line keys on the main 3.5-inch color display and scroll through even more contacts six at a time on a second display. Need even more lines? Simply connect a Poly Edge E Expansion Module. Designed for the way you work Wi-fi-ready for hassle-free performance at home or office Integrated Wi-Fi and Bluetooth® 5.0 on the Edge E450 gives you more options. With simple out-of-the-box Wi-Fi configuration, this phone gives you peak performance anywhere you’ve got a signal. Feel free to move about the office with your Bluetooth headset. And you can answer your paired mobile phone calls with your desk phone. Incredible audio Featuring Poly legendary voice quality and noise blocking With noise eliminating Poly NoiseBlockAI and Acoustic Fence technologies, you can expect clear calls every time. And our signature HD voice and bass-frequency-enhancing speaker design give you audio quality you’ll have to hear to believe. Integrated Microban® antimicrobial protection Rest assured that your devices, enhanced with Microban® antimicrobial product protection, stay cleaner, fresher and more durable for longer. Protection that lasts the life of the product, actively reducing the growth of bacteria 24 hours a day, 7 days a week.