Clear One Max Wireless
Features: Digital spread spectrum. 150 foot wireless signal range. Up to 8 hours of talk time. Dual function power supply/charger. 4 hour charging time. Automatic power save mode. 360 degree microphone coverage. Speed dial. Audible warnings. Phone paging. Recording output on base unit. Mute button. Base unit dimensions: 4.25" x 5.5" x 2.5".