Handsfree calling and quality sound Bluetooth 5.3 chip technology provides clearer sound and a stable connection for calls and music. Enjoy clear calls and uninterrupted playback, as if you were speaking face to face. LED charging case and 180 hours standby time LED charging case with a built in 500 mAh battery. Earbuds can be fully charged within about 1 hour. When used with the charging case, the wireless earbuds can be charged about 78 times. Standby time up to 180 hours. Comfortable inear design Fits both left and right ears with an inear design. The ear hook rotates 180 degrees vertically and 360 degrees horizontally for a flexible, secure fit. Lightweight and comfortable for long listening sessions. Mute function and active voice Supports voice assistants with a built in microphone. Answer or reject incoming calls and mute the headset. Mute and unmute easily by pressing the mute button. Usage scenarios Daily commuting: take calls hands with reliable connection and clear audio. Office or remote work: use with voice assistants for tasks and mute during meetings. Home workouts or travel: comfortable fit for extended wear while listening to music or taking calls.