✅ 【Only 1 left】First come, first served! ✅ Brand new, unused item. 【100-hour continuous operation & LED battery level display】Compared to the previous version, the Bluetooth system and battery life have been improved. With a 1.5-hour full charge, you can get approximately 10-12 hours of talk time and about 10-12 hours of continuous music playback. In addition, to prevent the loss of the earphones, a 500mAh charging and storage case is included, which can fully charge the earphones about 5-7 times. 【Ergonomic design & suitable for both left and right ears】The Bluetooth earphones are designed with an ergonomic 12g ultra-lightweight design, making them comfortable to wear and less likely to cause ear fatigue. They adopt an in-ear design, and the design that supports the ear with three points, fixing them deeper in the ear than other types, makes them less likely to fall out of the ear, allowing you to easily make calls even in crowded trains. Three sizes of replacement ear tips are included, so you can choose according to your ear size (S, M, L). 【Stable Bluetooth 5.3 connection, automatic pairing, CVC 8.0】Bluetooth has been upgraded to Bluetooth 5.3 technology, which can connect more stably and faster than the previous old version. "Sound skipping" and "sound interruption" can be significantly improved. The transmission distance also reaches 10M (without obstacles). After the first use, there is automatic memory, and automatic connection is possible when you start this product from the second time, eliminating the need for complicated manual pairing. Furthermore, 【Easy to use & strong compatibility】Easy-to-use one-button design, concentrating multiple functions into one button, allowing you to perform operations such as "music playback/pause", "call start/end/reject", and "redial" with one button, so you don't have to take your smartphone out of your pocket or bag to operate it. 【Dedicated hands-free call microphone & mute function】The Bluetooth headset is equipped with a unidirectional microphone and CVC 8.0 noise canceling function, which accurately picks up your voice, blocks noise from the surroundings, and enables clearer calls, delivering clear audio to the other party even in noisy places. In addition, to protect personal privacy, a mute function is also included, and during a call, pressing the "MFB key" will prevent the other party from hearing your voice, which is convenient when handling confidential information, such as during a meeting.