1. Bluetooth 5.1 2. IPX3 waterproof earphones can prevent sweat and rain 3. Smart touch, just click the multi-function button 4. It does make the master-slave switch easy and clean, and eliminates interruption 5. Intelligent noise isolation, clear face-to-face conversation 6. Operating range: 10m 7. Headphone capacity: 80mAh 8. Charging capacity: 1200mAh 9. Charging port: Micro-USB 10. Standby time: about 200-240 hours 11. Charging time: about 2h 12. Playing time: 18-24 hours (with charging box)

http://olla.gr/md06-mini-in-ear-tws-wireless-touch-digital-display-bluetooth-earphone-pink/