Features: Compatible with most softphones via USB for VoiP. Totally wireless hands-free communications. Digital 900MHz for secure conversations. Remote ring detection. One touch call/answer with PerSonoCall™ software. Convertible headset for over-the-head or over-the-ear. Range of up to 200 feet from the base unit. Headset weighs only 26 grams. IntelliStand™ base unit automatically answers and end calls. 8-hour continuous talk time on rechargeable battery.