Plantronics BackBeat PRO+ Wireless Noise Canceling Hi-Fi Headphones NOISE-CANCELING HEADPHONES: Block out background noise while working, relaxing, and traveling with on-demand active noise canceling technology. MULTIPLE DEVICE SYNC TECHNOLOGY: Listen to a movie on your tablet and quickly answer the call on your smartphone; these headphones are compatible with all smart devices including iPhone, iPad, and Droid devices. HIGH QUALITY AUDIO: Rich and lifelike audio delivering rich bass, crisp high, and natural mid tones through extremely comfortable headphones. LONG LASTING BATTERY LIFE: The Plantronics technology offers up to 24 hours of listening while providing 330 feet of Bluetooth range. COMFORT: Perfect travel and in-flight headphones include pillow soft ear cups to provide lasting comfort while canceling and isolating background noise.