Poly Bluetooth Headset Voyager Free 20 Black Brand Poly Colour black Ear placement In Ear Form factor True Wireless Impedance 16 Ohm True wireless Bluetooth® earbuds True wireless Bluetooth® earbuds Adaptive Active Noise Canceling (ANC) Three noise-canceling mics in each earbud Powerful 10 mm speakers bring your music and conversations to life Personalise the fit with four ear tip sizes Voyager Free 20 Flexible/hybrid workers who prefer discrete, wireless earbuds Standard version PC + smartphone/tablet Three microphones per earbud, with adaptive Active Noise Canceling (ANC) and intelligent noise reduction.