JBL UA PROJRCT ROCK Bluetooth 4.2 IPX7 Waterproof True Wireless In-ear Sports Bluetooth Earphone

1. Bluetooth version: 4.2 2. Drive unit size: 5.8mm 3. Dynamic frequency response range: 20Hz-22kHz 4. Impedance: 14ohm 5. Charging time: 2 hours 6. Battery capacity of charging compartment: 1500mAh 7. Music playback time when Bluetooth is turned on: 5 hours 8. Play time when Bluetooth is turned on: 5 hours 9. Sports enhanced sound effects, enhance the low-frequency dive, enhance the sense of rhythm of the sound, and further improve the sports experience 10. Possess IPX7 waterproof and sweatproof rating, without fear of harsh sports environment challenges 11. Ergonomic design, comfortable to wear 12. Perceive the surrounding sound and keep the music playing 13. The winged earplugs can ensure safe and stable wearing to a greater extent 14. Aluminum charging case, with IPX3 waterproof function, effectively protect your earphones 15. Magnetic suction and automatic charging, easy to use 16. Efficiently pick up human voices, effectively reduce background noise, and bring a clear call experience 17. Take it out of the charging compartment to complete the boot and automatically connect back to the last connected device 18. Press and hold the left ear for 2 seconds to wake up the voice assistant for easy voice inquiries or calls 19. Headphone battery life: about 25 hours 20. Charging compartment battery life: 20 hours