Portable Design Hi-Fi Sound Multi function: Wireless + Micro SD +FM and Aux. Four hours playtime and adjustable slider headband Fully Enclosed Sound Cavity Design Enhance the sounf insulation, easy to isolate external noise. to create a perfect music enjoyment surrundings Adjustable Slider Headband With adjustable slider and soft padded headband allow you to get the most comfortable enjoyment Specifications • Bluetooth version: V5.1 • Wireless working range: 10m • Speaker frequency: 20Hz - 20KHz • Battery: 200mAh • Play time: 3-4H • Talk time: 3-4H • Charging time: 2-3H •40mm drivers • HD sound •Crytal Clear calls • 3.5mm Aux jack. Multi-function playback: Supports Bluetooth, micro SD, FM radio, and 3.5mm AUX jack for wired use.200mAh battery: Provides 3-4 hours of playtime on a single charge.Enhanced sound insulation: Effectively isolates external noise for an immersive music experience.Versatile design: Ideal for sports, offering wireless convenience and wired options for uninterrupted listening. The Wireless Sport Headphones offer versatile functionality and superior sound quality, making them perfect for active users. These multi-function headphones support Bluetooth, micro SD card playback, FM radio, and 3.5mm AUX input for wired listening. With a 200mAh battery, enjoy 3-4 hours of playtime on a single charge. Designed to enhance sound insulation, they effectively isolate external noise, delivering an immersive listening experience that lets you focus on your music, whether you're on the move or relaxing. Ideal for sports and everyday use, these headphones provide the flexibility to switch between wirele.