JBL Tune Flex Features

• Driver size: 12 mm/ 0.472”
• Power supply: 5V 1A
• Earbud battery type: 55 mAh
• Charging case battery type: 570 mAh
• Charging time: < 2 hrs from empty
• Talk time: 4.5 hrs
• Music playtime with BT on and ANC off: up to 8 hrs
• Music playtime with BT on and ANC on: up to 6 hrs
• Impedance: 32 ohm
• Maximum SPL: 95 dB
• Bluetooth version: 5.2
• IP Rating: IPX4