Thank you for viewing. I will pack it carefully and ship it quickly. Thank you for your consideration. High-quality sound and customizable to your liking. Excellent balance from high to low frequencies, with natural and clear vocals. DSEE upscales compressed audio to CD quality, and you can also adjust the sound quality to your preference. Reliable basic performance. Ultra-lightweight and compact at 5.4g for the main unit and 35g for the case. Despite its small size, it boasts high battery performance, with a compact design offering 20 hours of playback. Splash-proof. With IPX4 splash-proof performance, you can enjoy music without worrying about rain or sweat. Simultaneous left and right connection. Adopting a simultaneous left and right transmission method, it works with any smartphone, providing a stable connection and low latency.