The Pro 920 Single-Ear Wireless Headset from Jabra is designed to allow you to take calls from your desktop phone wirelessly. It includes a headband attachment, an earhook attachment, a power adapter, a telephone cable, and a base. The Pro 920 employs Digital Enhanced Cordless Telephony (DECT) wireless technology to provide up to a 325-foot range of operation. You can connect up to 4 Pro 920s to a single base station to allow for conference calls. The headset has a built-in rechargeable battery that can provide up to 8 hours of talk time. Its microphone features noise-canceling technology designed to provide accurate reproduction of your voice.