JBL Tour Pro 2

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 JBL product is in a deep sleep mode, which it is to prolong the lifetime of the battery. Connect the case to a charger for about 2 seconds to wake the product up and take the earbuds out from the case. Once you put the earbuds back in the case, it's ready to pair through Bluetooth. 

Personi-Fi 2.0 is a new feature available through the JBL Headphones App. This feature helps to personalize the sound using the best possible sound curve based on your hearing capabilities. It will first ask a few questions, and then check your current ambient audio. You will be informed that this step should be completed in a quiet environment. It will play a series of test tones in all the different frequencies wherein after each frequency test tone is played, it will ask you what is the lowest volume setting you can hear. Nine different sounds will be played in each ear (18 in total).

Simply press and release the button when you hear a sound. After it goes through all the test tones, it then calculates the best sound for your ears based on the results. It allows you to demo the results by playing a track. You will be able to toggle it on/off to hear the difference.

The JBL Tour Pro 2 allows you to find your preferred control method in any scenario. When you want to control your headphones, you no longer need to take your phone out, open the JBL Headphones app and wait for the headphones to connect in the app. All features are accessible directly on the Smart Case, where you can easily select any key feature, you know from the app.

Some of the features you can access on the Smart Case includes playing and pausing your music, skip to the next/previous track, volume adjustment, answer/reject calls, customize the EQ settings, Spatial audio, ANC and Ambient Sound Control, timer & clock, receive notifications, screensavers, and a battery indicator. 

The Smart Case only supports English, so even if you change the language in the JBL Headphones app, it will remain in English.

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.