[Hi-Fi Sound Quality]This headset features Bluetooth 5.1 and CVC6.8 noise reduction technology, providing high definition, high clarity, and impressive bass response. The noise reduction function effectively eliminates surrounding noise, ensuring clear sound quality and crystal-like high-quality sound during calls and music playback. [Ergonomic Neckband and Retractable Earbuds]The ergonomic neckband design makes it more comfortable to wear the wireless headset around your neck. The retractable earbud design allows you to pull the retractable earbud cord to your desired length, and then the retract button to store the earbud cord in the Bluetooth headset. [Built-in Microphone and Incoming Call Vibration]The neckband Bluetooth headset has a built-in microphone and supports noise reduction to clear and unmistakable calls. Even in a noisy environment, you not miss any incoming calls because the headset vibrate to notify you. The convenient easy-click button allows you to easily answer, end, reject, and redial calls. [Extreme Battery Life]Equipped with a built-in 200mAh battery, the Bluetooth headset offers an impressive battery life. Enjoy up to 22 hours of music playback, 20 hours of talk time, and up to 550 hours of standby time on a single charge. Plus, you can conveniently check the battery level on your connected device, ensuring uninterrupted music enjoyment throughout the day. Colour:Black and Pink Material:ABS Package Contents: 1 x Bluetooth headset 1 x USB charging cable 2 x ear caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.