506 Life Waterproof Sweatproof Stereo Wireless Sports Earbud Earphone In-ear Headphone Headset with Micro SD Card Slot, For Smart Phones & iPad & Laptop & Notebook & MP3 or Other Audio Devices, Maximum SD Card Storage: 8GB(Black)

1. Sports headphone for sports enthusiast.
2. Equipped with one Micro SD card slot, support Micro SD card up to 8GB.
3. Life waterproof level, adots waterproof technology to bring wonderful waterproof and sweatproof effect.
4. Built in baterry, 4 hours play time.
5. Fashion color, lightweight and comfortable, make your sports more relaxed.
6. Fast connecting speed, great sound insulation effect.
7. Compatible with most of android and IOS smartphones, such as: Apple, Samsung, Xiaomi, Huawei, tablets and other audio devices.