Introducing Bluetooth Headphones With SD Card Support & Mic, a must-have for music lovers who are always on the go. It's Bluetooth V5.0 technology offers a wireless connection to all audio devices that have Bluetooth capabilities, such as cell phones, tablets, laptops, and computers. You can also enjoy your music with its MP3 function and FM radio support, which provides crystal-clear stereo music playing. Additionally, it features a 3.5mm audio jack that provides a simple wired connection to various devices. With its built-in microphone, you can answer or reject phone calls anytime and anywhere without removing the earphones. It can be charged via USB, making it convenient and practical for everyday use. It can last up to 20 hours and continue talk time of up to 15 hours, with a standby time of up to 360 hours. Its foldable design and adjustable length hinges provide comfort and convenience, making it easy to carry around. This headset is the perfect choice for listening to music, watching movies, and chatting online.