QUETTIO Wireless Earbuds Bluetooth 5.4 Headphones, Ear Buds with Deep Bass, 40H Long Playtime, IPX7 Waterproof in Ear Earphone with Mic for Phone Tablet Sports Workout, Black

Bluetooth 5.4 effortless pairing: the advanced Bluetooth 5.4technology delivers a stable, low-latency wireless connection for high-quality sound(music or call). Also, the Bluetooth earbuds can connect automatically to the Bluetooth of your mobile phone when you open the charging box, avoiding complicated operations and saving waiting time.