KSCAT IPX8 Waterproof Sports Stereo Headphones Wireless Bluetooth for Swimming Professional IPX8 Waterproof design. No problem for swimming. Light weight for comfortable wearing. CSR8645 4.0 chip + APT-X decoding. Excellent sound quality guaranteed. Sixth generation CVC noise reduction. Enjoy clear phone calls. Listen to music and answer phone calls by wireless control and with voice prompt. Made of memory titanium. Stay on the back of your neck. No more disturbing wires.