Poly Battery - For Wireless Headset - Battery Rechargeable - Proprietary Battery Size

Save your precious time by recharging the battery instead of running to the store each time you run out of batteries Proprietary Battery Size battery - Ideal for replacing the older wireless headset battery easily Proprietary Battery Size battery size for better reliance and dependable usability Rechargeable & avoids disposables - designed to be used repeatedly, helping you save money and avoid single-use disposables.