*THESE SONY EARBUDS ARE CERTIFIED REFURBISHED/RENEWED* Sony's WF-C700N wireless earbuds provide noise cancellation, Bluetooth connectivity, IPX4 water resistance, and great audio quality in a sleek, compact in-ear design. Features & details Noise cancelling technology to immerse yourself in music. Experience all-day comfort with our ergonomic surface designed earbuds. Unleash exceptional sound for a captivating listening experience. Hands free calling that’s clearer than ever before. Up to 15 hours of battery life with quick charging (10 min charge for up to 1 hour of playback). Multipoint connection allows you to quickly switch between two devices at once. (Feature requires firmware update, available in Summer 2023.) With an IPX4 rating, splashes and sweat won’t stop these headphones. Boost the quality of compressed music files and enjoy streaming music with high quality sound through DSEE. A pocket-sized case makes it easy to take your headphones with you. Easy button operation allows you to switch between Noise Cancelling and Ambient Sound mode with one push.