JBL Vibe Flex Headset True Wireless Stereo (TWS) In-ear Calls/music Bluetooth Beige

 Product Type: Headset
Wearing Style: In-ear
Recommended Use: Calls/Music
Battery Type:  Built-in battery
Battery technology:  Lithium-Ion (Li-Ion)
Battery capacity:  40 mAh
Input voltage (earbuds):  3.85 V
Input voltage (charging case):  3.8 V
Battery capacity of right earbud:  40 mAh
Battery capacity of left earbud:  40 mAh
Continuous audio playback time: 8 hours
Battery technology (charging case):  Lithium-Ion (Li-Ion)
Battery capacity (charging case):  500 mAh
Battery charging time:  4.5 hours