Plantronics Voyager Legend Wireless Bluetooth Headset - Compatible with iPhone, Android, and Other Leading Smartphones - Gold (Special Edition) BLUETOOTH 3.0 HEADSET: Signature Plantronics audio technology and enhanced voice clarity through Bluetooth 3.0 and wideband audio support. compatible with bluetooth 4.0 headsets SMART SENSOR TECHNOLOGY: Our technology senses when the headset is being worn so it can automatically answer calls as you place the headset on your ear or redirect audio to your phone when you set down your headset. VOICE RECOGNITION: Manage calls hands free without pressing buttons through Plantronics voice recognition technology, just say Answer or Ignore.Operating + storage temp : 32F  104F (0  40C) NOISE CANCELLING TECHNOLOGY: Our triple mic technology cancels background noise and wind and can separate your voice from 80 dB's of background noise. WATER RESISTANT: P2i nano-coating technology will protect this Bluetooth headset from rain, sweat, and coffee spills so you can wear the headset in the office or at the gym. Please Note: Kindly refer the User manual and the Guide before use.