ORAIMO Shark Sport Sweat Proof Wireless Headset. Design-wise, the earphones come with a flexible round the neck design for ease of usability. The earphones are made of a mix of plastic and metal. The Shark OEB-E57D feature an in-line remote and microphone that allows the user to manage music playback on the go. The earphones come with three sizes of shark fin eartips and earbuds that allows users to find their optimal fit. The Shark OEB-E57D earphones are powered by an impressive battery that provides 8 hours of talktime. It is capable of lasting 120 hours on standby mode. The device supports Bluetooth V4.1.