Sony Earphones Open-type casual/sports, products from Japan

High sound quality and adjustment to your liking You can adjust the sound quality to your liking by complementing the sound source compressed by DSEE with a good balance from high to low range and natural and clear vocals to the equivalent of CD sound quality.;Reliable basic performance Main body 5.4g Case 35g Ultra-lightweight Compact Compact yet high battery performance Compact design for 20 hours playback;Drip-proof and drip-proof performance IPX4, so you can enjoy music without worrying about rain or sweat.;Simultaneous left and right connection By adopting the simultaneous left and right transmission method, it is possible to connect without interruption and low delay regardless of the smartphone.