Shokz OpenComm2 Wireless Bluetooth Open-Ear Headphones (Black)OverviewWith the Shokz Opencomm2 you can navigate the dynamic demands of your work environment with crystal clear calls, stable connectivity,and unrestricted mobility. Equipped with 7th generation bone conduction technology and reliable Bluetooth connectivity. With the signature open ear design, you stay comfortable and in tune with your surroundings whilecommunicating effortlessly. SpecificationsSpeaker Type: Bone ConductionFrequency Response: 20HZ