JBL Tour One M3 Smart Tx

Yes, both the Smart case and the Smart Tx are synched wirelessly to the headphones and can be used simultaneously.

The True Adaptive Noise Cancelling technology is a features which adjusts noise-cancelling levels in real-time, 50,000 times per second to account for environmental ambient noises and personal attributes such as movement, hair and eyeglasses to deliver best-in-class Noise Cancelling and immersive sound in any environment.  
With the help of Feed Forward and Feed Backward microphones, the Adaptive Noise Cancelling technology fully monitors exterior sounds picking up low-frequencies and neutralizing them before they reach the ear. The headphones generate a sound that's phase-inverted by 180 degrees to the unwanted noise, resulting in the two sounds cancelling each other out. 
In addition, all headphones allow the listener to adapt or adjust the level of ambient noise through features like Ambient Aware and TalkThru.

The built-in Digital-to-Analog Converter (DAC) makes it possible to enjoy lossless high sound quality with low distortion and accurate conversion.

Connect the headphones with the included USB-C cable or 3.5mm aux cable to any audio source to enable Hi-Res audio. If you want to have Hi-Res audio wirelessly you need to connect an Android device with at least Android OS 13 or higher and use streaming sources such as Apple Music, Tidal or Amazon Music.

The JBL Tour One M3 supports SBC, AAC and LDAC 24bit/192kHz when connected to a device that has support for these codec.

JBL Pro Sound is achieved through robust 40mm Mica Dome drivers, which are precisely tuned to deliver deep bass, balanced mids and crystal-clear highs. Each Mica Dome deliver refined high frequencies above 40kHz for the best on-the-go listening experience. Mica is a renewable mineral that can be split into extremely thin elastic plates, making it flexible enough to respond fast and precisely to the electrical signals in headphone drivers.

Spatial sound gives a more natural, realistic and accurate immersive experience whether you are listening to music, movies or games.

The technology processes more details from any stereo content, which generates reflections and reverberation signals. The integrated head tracking means that sound stay fixed in space even when you turn your head, which adds a new layer of realism to your immersive listening.

The Smart Tx draws power from the source when using it with a USB-C connection. The battery life of the Smart Tx is 18 hours when the product is connected with a 3.5mm aux connection or used without a connection to a power source.

You can connect the JBL Smart Tx to any audio source to elevate your wireless sound experience. Use the USB-C cable to connect to a digital audio source such as a phone, tablet or laptop or use the 3.5mm aux to connect to an inflight entertainment system on most airplanes, TV or PC to experience wireless audio.

The Smart Tx gives you full access to the Tour One M3 via the touch screen without the need for your phone or app. The Smart Tx can also stream your audio to any Auracast enabled supported headphones or speakers.

The JBL Headphones app supports the file types JPG and PNG. There is no limit on file size, as this depends on how much the phone and app can handle to load the image into the app. When you are uploading the image to the Smart Case, the app will make a screenshot of the image and cut the image, so it fits the shape of the screen. Therefore, the size of this screenshot will be smaller than the size of the image.

If you are not able to turn Spatial Audio on and the option is greyed out on the JBL Smart Tx, then you need to do the following.

• Open the JBL Headphones app
• Disable High-Resolution Audio (LDAC)
• The headphones will turn off and reboot
• You can enable Spatial Audio after the reboot