Experience wireless freedom with these lightning earphones, designed to fit comfortably in your ears. With a wireless transmission distance of over 10 metres and a 2.4GHz-2.48GHz transmission frequency, you can move freely without worrying about tangled cords. The earphones boast a 28mAh battery capacity, providing approximately 4 hours of music playtime or 3.5 hours of talk time. The included charging case has a 300mAh battery capacity, allowing you to charge the earphones wirelessly in just 2 hours or via USB in 1.5 hours. When not in use, the earphones offer an impressive standby time of up to 100 hours. Enjoy the convenience of hands-free calling and music streaming with these sleek and functional earphones.