Hands calling and sound The earphone uses Bluetooth 5.3 chip technology to provide clearer sound and a stable connection, making calls sound clear and natural. Enjoy uninterrupted music and calls with dependable performance. LED charging case and 180 hours standby time Builtin 500 mAh charging case powers the earbuds. Earbuds with microphone fully charge in about 1 hour. The case provides 7–8 full charges for the wireless earbuds, with standby time up to 180 hours. Comfortable inear design Ergonomic inear fit supports both left and right ears. The ear hook rotates 180° vertically and 360° horizontally for a flexible, comfortable fit. Lightweight design is suitable for hours of wear. Mute function and active voice Supports voice assistants via the mobile phone Bluetooth headset. Builtin microphone enables answering or rejecting calls and muting the headset. Mute/unmute is easily done with the mute button. Use scenarios Daily commute or outdoor activity: take hands calls and listen to music with stable connection. Remote work or online meetings: quickly answer, reject, or mute calls as needed. Allday listening with portable charging: rely on the LED charging case for repeated charges and extended use.