<b>True Wireless Stereo Bluetooth Headset adopts advanced Bluetooth 5.0 version technology, which can support Bluetooth devices with HFPv1.7, HSPv1.2, A2DPv1.3, AVRCPv1.6, and SSP1.2 protocols, which can be connected with computers and mobile phones, and have calls Features such as listening to music, and a portable charging case with 800mAH battery capacity can charge the earbuds about 5 times, which can be used for office, leisure, travel and walking. Moreover, the TWS Stereo Ear Buds is simple to use and convenient for pairing, with corresponding voice prompts. If you have any other questions, please contact us in time, we will reply within 24 hours</b><br>