https://www.burton.co.uk/product/panasonic-rp-hs34e-water-sweat-resistant-adjustable-in-ear-sports-headphones_p-34d22b3f-4653-4517-bb2f-35899d7c2b50£colour=Black&size=One%20Size

The water resistant (IPX2 equivalent) design guards against sweat entry, and the adjustable hanger keeps these clip type earphones comfortable during sports use. Bass sounds are also clear and robust. Optimally Designed for Sports Use The HS34 clip on the ear and the cord runs behind the ear, so they won't come off during exercise and touch noise is minimized for great listening. Because the HS34 are water resistant (IPX2 equivalent*), they're great for sports use. Comfortable Fit The clip hanger keeps the HS34 firmly held to the ear, and the position of the inner part can be adjusted for a comfortable fit. Multiple color variations are available so you can coordinate with your sportswear and shoes. | Panasonic RP-HS34E Water/Sweat Resistant Adjustable In-Ear Sports Headphones in Black - Manufacturers part number: Panasonic_5025232768066