CD Quality Music Without The Wires. Quit getting all tangled up in your old wired headphones and experience the freedom of moving around and enjoying the music. With wireless a range of over 30 feet, wireless headphones are perfect for the home, work or the gym. Incoming call? No problem, just tap the answer button on the headphones and answer the call - the noise canceling high sensitivity microphone ensures that you can be heard, tap again to hang up and your music will resume. Support for the following Bluetooth Profiles: A2DP (Advanced Audio Distribution Profile) - Ensures Crystal Clear Stereo Audio from the majority of current smartphones & tablets. AVRCP (Audio/Video Remote Control Profile) - Allows control of source (smartphone, tablet, mp3 player) directly from the headphones HSP (Headset Profile) - HFP (Hands-Free Profile) - Enables these headphones to be used for hands-free phone calls. Noise-Canceling High Sensitivity Microphone Working distance: 10M Time for Full Charge: About 2-3 hours Talk Time: Over 8 hrs Stand-by time: Over 250 hrs