Core Features: Optimal Hd Voice With 3 Built-In Microphones, Full Duplex Technology, Echo Cancellation, 10-Foot (3-Meter) 360 Voice Pickup, Up To 20-Meter Connection Distance With Cp965, 11-Day Standby Time And 13-Hour Talk Time, Intuitive Capacitive Mute Buttons, 360 Nondirectional Charging On Charger Cradle And Dect Technology.