Wireless headset with a single-ear design, featuring volume control and mute function. - Model Name: Engage 65 Mono - Brand: Jabra - Included: Quick Start Guide, AC Adapter, Modular Cable, Ear Cushions (spare) Used until last week and in good working order. The battery was replaced about a year ago. There are some minor scratches. Includes a new spare ear cushion that I purchased. This model can be connected to a telephone. I used it for work, but I'm selling it due to a department transfer.