about this item:

Advanced Bluetooth 5.0+EDR technology, enjoy crystal-clear sound and a strong, stable connection up to 10 meters away — no more tangled wires, just pure freedom! Enjoy sound experience with powerful bass and HiFi stereo sound quality. Connect wirelessly via Bluetooth, plug in with the 3.5mm jack, switch to FM radio, or play music directly from a MicroSD/TF card. Take calls hands-free with the built-in microphone, and enjoy up to 6 hours of nonstop music on a single charge. The lightweight, foldable design with an adjustable headband makes them perfect for travel, gym, or your daily commute. Ergonomically designed to fit the ears for improved stability and long-term comfort.