JoyiQi Foldable Bluetooth Headphones Wireless Headset Stereo & Bass Earphones with Microphone & Rechargeable Battery & Mp3 Player & Micro SD Card Slot & Radio for Smartphones and Tablets 1. Enjoy impressively crystal and bass sound, foldable design and adjustable length hinges, very comfortable to wear and easy to carry.Best for listening music, watching movie, chatting online. 2. Bluetooth stereo headphone+Mp3 player+FM radio+Equalizer+Micro SD card slot. 3. Easy bluetooth connection works with all smart phone, transmission distance is more than 10 meters, continue working time is more than 5 hours(50 percent volume). 4. Make and receive phone call with built in HQ Mic, support AUX. 5. One year quality guarantee