1.Bluetooth connectivity: The headphones can be easily paired with any Bluetooth-enabled device, allowing for wireless listening. 2.Neckband design: The neckband design ensures a comfortable fit and keeps the headphones securely in place, even during physical activity. 3.In-ear design: The in-ear design provides noise isolation and improves sound quality. 4.Bluetooth V5.0: Equipped with advanced Bluetooth 5.0 technology, it ensures sound and picture quality while effectively shortening the transmission interval, achieving high-speed and stable transmission, greatly reducing power consumption, and improving battery life. 5.The headphones have a battery life of up to 8 hours can be fully charged in approximately 1 hours<br><br>Colour:B:Skin Friendly Silver Material:ABS <br><br>Package Contents: 1 x neck hanging earphone 2pairs x ear caps 1 x USB data cable 1 x Instructions in Chinese and English<br><br>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.