JBL Pure Bass Sound Carefully designed, the 12mm drivers with stick form deliver the JBL Pure Bass sound to feel every beat.

Active Noise Cancelling with Smart Ambient Hear more of what you want and less of what you don't. The Active Noise Cancelling technology with 2 microphones minimizes audio distractions. With Ambient Aware, you can tune into your surroundings at any time to feel safer while outside, and TalkThru allows you to pause for a quick chat without removing your headphones.

4 Microphones for Perfect Calls Effortlessly enjoy hands-free calls in stereo sound. The Tune Flex is equipped with 4 microphones, so you will always be heard with absolute clarity. Feel free to answer or make a call again. With VoiceAware, you can choose how much of your voice you want to hear by controlling the amount fed back into your earbuds.

• General Specifications:
• Driver size (mm): 12
• Number of microphones: 4
• Audio Specifications:
• Driver sensitivity at 1kHz/1mW (dB): 110
• Dynamic frequency response range (Hz): 20 Hz – 20 kHz
• Impedance (ohms): 32
• Dimensions:
• Charging case weight (oz): 1.4
• Earbud weight (oz): 0.3
• Charging case weight (g): 38.6
• Earbud weight (g): 9.6
• Control and Connection Specifications:
• Bluetooth version: 5.2
• Bluetooth profiles: A2DP V1.3, AVRCP V1.6, HFP V1.7
• Bluetooth frequency: 2.4 GHz - 2.4835 GHz
• Bluetooth transmitted modulation: GFSK, π/4-DQPSK, 8DPSK
• Battery:
• Maximum talk time (hours): 4.5
• Charging case battery life (maximum hours): 18
• Charging time (hours from empty): 2
• Maximum music play time with ANC off (hours): 8
• Maximum music play time with ANC on (hours): 6
• Maximum play time (hours): 32
• Features:
• Sweat resistant: Yes
• Active Noise Cancelling: Yes
• Water resistant: Yes
• IP Code: IPX4
• Charging cable: Yes
• Ambient Aware: Yes
• Built-in Microphone: Yes
• Hands-Free Call: Yes
• JBL Pure Bass Sound: Yes
• TalkThru: Yes
• True Wireless: Yes
• Wireless: Yes
• Charging case: Yes
• Rechargeable battery: Yes
• Bluetooth: Yes
• Included Items:
• 1 x JBL Tune Flex earbuds
• 1 x Charging case
• 1 x USB Type-C charging cable
• 1 x open rubber bar
• 1 x 3 sizes of sealed rubbers
• 1 x Warranty / Warning
• 1 x Quick start guide / Safety sheet