Sony Wf-C710n Wireless Noise-Canceling Earbuds .

Bluetooth: Version 5.3 Effective range: 10 meters Multipoint connection: Yes Battery Earbuds battery life: Up to 8.5 hours (ANC on) or 12 hours (ANC off) Total battery life (with case): Up to 30 hours Charging time (earbuds): Approx. 1.5 hours Charging time (case): Approx. 3.5 hours