READ BEFORE PURCHASING: Before a return If your headset isn't working CONTACT SELLER for technical support which will get your headset working in 99% of cases. Whether the headset won't sync, you have echo, static, hear/can't be heard, this can be resolved.The Plantronics CS50-HL10 wireless headset bundle is the ultimate tool for office professionals who need wireless freedom in their office to walk and talk, without worrying about cords getting in the way. The Plantronics CS50-HL10 bundle allows you to answer or end calls remotely when away from your telephone. Whether you need to grab a cup of coffee, meet with a co-worker or you need to get your steps in for the day, you'll still have the ability to answer your calls! In addition, you'll have the wireless freedom to walk and talk up to 300 feet and a battery rated up to 8 hours of talk time on a single charge