Sennheiser 4.50 BTNC HD Bluetooth Headset ANC Noise Cancelling Call Headset HIFI Wireless Bluetooth Headset with Active Noise Cancellation

OverviewBluetooth 4.0 and aptX technology deliver superior wireless sound quality NoiseGard Active Noise Cancellation reduces ambient noise levels for an improved listening experience. Intuitive controls mounted on the earbuds for changing tracks and making calls via the built-in microphone. Dual omnidirectional microphones With Bluetooth and NoiseGard enabled, the battery lasts up to 19 hours and comes with a cable for listening without batteries