JBL Tune 600BTNC

This headphone does not support aptX, aptX HD, aptX Low Latency audio codecs.

Yes, you can activate the noise reduction circuits alone, with no connection to a source device by Bluetooth or cable. The headphones will stay on as long as there is power in the battery, which is close to 30 hours for pure NC function. Please note that there is a slight residual noise from the NC system, which will be drowned out by music playing, or by surrounding noise such as airplane noise. If you use the NC in surroundings that are near quiet to begin with, you may not get an improvement in noise level.

Yes, the headphones have Multipoint Connection, which allows you to switch seamlessly between the connected devices. 

Yes. The 600BTNC features an audio cable that you can use if you do not wish to use the headphones via wirelessly.

• Always have clear line of sight between your Bluetooth device (speaker, headphones etc.) and source device (Smartphone/tablet/PC etc). Be aware of obstacles in front of your devices.

• Try to shutdown other products that have Bluetooth, but are not being used. They are often the reason for interference even though they are not being used.

• Do not stand too close to your Wi-Fi router since a Wi-Fi signal is stronger and in many cases will "overlap" the connection.

• Be aware of walls around you. Concrete and brick walls will often interrupt the signal, as it cannot pass through such thick walls.

• Bluetooth signals cannot travel through water, which includes the human body. Make sure with wireless headphones to keep your source device and the receiver on the same side of your body.

• Open spaces such as parks can cause issues for your devices, as open air is "bad" for any Bluetooth signal if it cannot reflect from objects around you.

In order to reset the headphones: 

Long Press of volume + and volume - at the same time while the unit is on. Make sure that bluetooth is NOT on and connected to any device. 
When reseting, LED will blink faster. 

Yes, but only via cable, and noise cancelling cannot be activated meanwhile. Since the charging socket is located on top of the ear pod, adjustment is limited in that direction while the micro-USB plug is inserted.

No. The 600BTNC headphone does not feature any IPX rating that protects it against sweat or water. Over exposure to water can compromise the controls on the headphones.

This product does not feature an IPX rating and is not waterproof. Over exposure to water or moisture can result in irreversible damage to this unit.