JBL Live Flex4 Blue

The JBL Live Flex 4 wireless earbuds feature a semi-open design and a stable connection using modern Bluetooth 6.0 technology. The earbuds use adaptive noise cancelling to effectively suppress ambient noise while you listen. The integrated battery provides a total battery life of up to 50 hours when combined with the charging case. The earbuds themselves can play for 10 hours without active noise cancelling, and they can be conveniently charged via USB-C or wirelessly. The durable IP54-rated construction protects the device from dust and splashing water.

Sound and Tuning

The 12mm drivers deliver a balanced sound performance with an emphasis on clean details and deep bass. Wireless technology transmits audio nuances across a wide frequency range of 20Hz to 40kHz. The spatial sound feature creates a three-dimensional listening space for a more natural perception of recordings. In addition, the Personi-Fi 3.0 tool helps you customise the sound curve to your personal hearing profile.

Noise Cancelling and Passthrough Mode

True Adaptive Noise Cancelling 2.0 technology actively suppresses ambient noise based on real-time analysis of your surroundings. Ambient Aware mode, in turn, makes it easier to perceive sounds from your surroundings when you need to stay alert. The system automatically reacts to your voice and pauses playback via the Smart Talk feature. You can easily adjust the passthrough intensity and noise cancelling level in the mobile app.

Battery Life and Charging

The earbuds offer up to 10 hours of continuous use with noise cancelling turned off. The charging case holds power for another 40 hours of use, giving you a total of 50 hours of listening time. Just a 10-minute quick charge provides power for 4 hours of use. A standard USB-C connector or Qi-certified wireless pads are used for recharging.

Calls and Microphone

A total of six microphones with beamforming technology ensure clarity during phone calls. The integrated algorithm, trained by artificial intelligence, effectively filters out wind and street noise. The Voice Aware feature helps you regulate the volume of your own voice that you hear in the earbuds during a call. The microphone parameters can be fine-tuned according to the current ambient conditions.

Controls, App and Pairing

The Smart Charging Case features a touch screen for direct parameter adjustments without needing to take out your phone. On the screen, you can change the volume, switch tracks or activate noise cancelling modes. The mobile app offers complete management of all functions, including equaliser adjustments. The earbuds support Google Finder for quick pairing and seamless switching between multiple paired audio sources.