The 12mm dynamic drivers found internally have an impedance of 32 ohms and can produce frequencies ranging from 20 Hz to 20 kHz. They are able to support the AAC and SBC codecs in addition to being compatible with Bluetooth 5.2. These do not allow multipoint pairing like the Tune Buds do, and JBL does not guarantee that they will support the LC3 codec in the future.
The Soundcore Liberty 4 NC earphones have the advantage in this situation because they are compatible with the LDAC option that can handle high-resolution audio. You can switch out the control themes for the capacitive touch panels that are located on the exterior of each earpiece and adjust them to some degree using the accompanying mobile application. A single tap on the left earpiece toggles between the ANC On and Ambient Aware (transparent) modes. A double tap on the left earpiece toggles the TalkThru mode, which is a transparency mode that focuses on the conversation.
A long hold on the left earpiece summons your device’s voice assistant. One tap controls playing on the right earbud, two taps travel forward or backward inside a track, and three taps navigate backward within a track. A long press on the right earbud again activates your voice assistant. Calls may be controlled with a double tap on either earpiece, while incoming calls can be declined with a press and hold gesture. You have the option of switching to a volume theme; if you want to do so, one tap will raise the volume, two taps will lower the volume, and a long press will activate your voice assistant.
Specification
- Dynamic speaker 12mm driver
- 5 V, 1 A power supply
- Headphones: 4.8 g (9.6 g both)
- Charging case: 38.6g
Where to get JBL Tune Flex?
The JBL Tune Flex are acceptable headphones for use during travel and commuting. They are incredibly lightweight, can be easily transported, and offer a comfortable fit for the majority of wearers. They have a battery life of approximately 6.5 hours when used continuously with ANC turned on, and they come with a case that has four more charges, so you can always slip them in for a quick recharge even on lengthy journeys. On the other hand, they have a poor noise isolation and won’t be able to block out the rumbling of an airplane engine or a bus engine very well.
The JBL Tune Flex are excellent headphones for use during athletic activities and workouts. The majority of consumers who use the silicone ‘Sealing’ ear tips find that they provide a fit that is both comfortable and sturdy. The headphones include a design that makes them cordless, which eliminates the risk of snagging a cable and pulling them out of your ears inadvertently.
They have a rating of IPX4 for resistance to mild rain and other forms of water exposure. Even though they have poor noise isolation, which means that they won’t be able to block out the sounds of a busy gym, you may utilize the ‘Ambient Aware’ mode when you want to be able to hear your surroundings, such as when you are going for a run outside.