Sony Wf-C510 Wireless in-Ear Bluetooth Earbud .

Bluetooth version: 5.3 effective range: 10 meters supported audio format(s): sbc, aac bluetooth profiles: a2dp, avrcp, hfp, hsp multipoint connection: yes fast pair/swift pair: yes battery and charging earbud battery life (music): up to 8 hours (asm on) / up to 11 hours (asm off) earbud battery life (talk time): up to 5 hours (with or without asm) earbud charging time: approximately 1.5 hours charging case battery life: up to an additional 11 hours charging case charging time: approximately 3 hours (usb charging) quick charge: up to 1 hour of playback from a 5-minute charge charging method: usb charge (with case)