Listen to your tape recordings or use them when listening to telephone calls on Skype with these mono sound headset Go wireless and enjoy the music you love with the 7210 headset Ear-cup design provides optimum comfort and noise isolation DECT wireless technology keeps your conversations safe and secure Sharp looking over head design will give you a comfortable fit Boom microphone design ensures maximum convenience and optimal performance Stay connected smoothly with a wireless range of 393.7 ft Provides exceptional quality sound with greater immersion SoundGuard Technology feature for better usability and increased efficiency Noise cancelling microphone technology ensures easy, convenient listening and talking with maximum sound transfer efficiency