❤️…………………………………………… ・Brand new, unused item (Taken out of the bag once for photography) ・Same-day shipping ・Instant purchase OK! ……………………………………………… ❤️ 【For clearer speech】 Built-in digital chip, performs intelligent noise cancellation, multi-channel refined audio processing, making the sounds you hear softer and clearer. Distinguishes between human voices and surrounding sounds, enhancing voice clarity and amplifying sound up to approximately 35 times. 【Volume adjustment & 2 modes】 Manually scroll the volume adjustment knob up to increase the volume. Scroll down to decrease the volume. You can switch between two modes with the mode switch button, allowing you to freely choose a comfortable mode according to the usage scene and surrounding situation. (To prevent howling and echo. After wearing, turn the switch to "L" before turning on the power.) 【Ear-hook type, compatible with both ears】 The ear wire can rotate 360°, so it can be used on either the right or left ear. Long usage time, faster charging. Can be used for up to approximately 40 hours on a single charge. 【Lightweight type, only 5g】 Weighs only about 5g, ultra-lightweight. Ergonomically designed for a comfortable fit that won't tire you even after long hours of use. Small and light, it doesn't stand out, making it recommended for those who care about appearance and fashion.