Wireless, ergonomic and durable, lightweight, sits on the neck, designed for all-day listening
Bluetooth 4.1 wireless technology, NFC one touch pairing and Qualcomm apt-X support for True hi-fi sound
Convenient multi-connection with up to two devices simultaneously (phones and computers) with 3-way calling capability
Up to 10 hour battery life with 1.5 hour fast USB charging keeps you connected with music and calls
Personalized fit using four different size in ear adapters provides ideal attenuation of ambient noise
Sensitivity as per 121 TR 9 to 5 is minus 44 Decibel millivolts per Pascal