[Hands-free Call & Button] Bluetooth headset with built-in microphone, you can activate the assistant by pressing the button, the Bluetooth headset uses Bluetooth V5.1 chip, which provides clearer sound and stable connection. Use the button to easily control songs, stop music, answer, hang up and mute calls. [Bluetooth 5.1 Headphones & 8.0 Noise Reduction] The Bluetooth headphones use Bluetooth V5.1, which can achieve faster and more stable transmission. The transmission distance can reach 10 meters. The wireless headphones use advanced noise reduction technology to produce high-quality sound. Noise-reducing microphones reduce ambient noise and are perfect for noisy office environments. [Automatic Pairing & Connecting 2 Devices Simultaneously] After activating Bluetooth for the first time, it will automatically pair when the headset is turned on for the second time, without the need for a second connection operation. Connect 2 devices simultaneously, including laptop, smartphone, and Android. On the other hand, it increases your productivity and helps with multitasking. [Long standby time to avoid frequent charging] The built-in high-quality battery can be used continuously for 8 hours or talk for 10 hours after being fully charged for 1.5 hours. This Bluetooth headset is recommended for those who travel long distances. The headphones are small in size and easy to carry, so you can put the headphones in your pocket. You can use a TYPE-C charging cable to charge your Bluetooth headset. [Comfortable to wear, universal for both ears] The ear hook is designed to fit the shape of the ear. The headphones can relieve earache. In addition, the headphones can be rotated 180 degrees, and the ear hooks can be rotated. Based on the streamlined design of the ear wire, both the left and right ears can fit comfortably. (Note: The playback time depends on the playback content, playback volume) Material: Plastic Color: Black Package Contents: 1 x Bluetooth Headset Only the above package contents, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.