These are Bluetooth headphones with detailed and powerful sound. Many features can be adjusted using Parrot's smartphone app.
Pro Detailed highs and punchy bass
The highs are the highlight of the Parrot Zik 2.0's sound signature. They are very clear and crisp without adding any harshness to the sound. The bass is also very good as the headphones can produce a very satisfying rumble and punch in the low end. The mids are slightly recessed, so instruments like guitars and the vocals are not too prominent, but are still clear.
Pro Excellent adaptive noise-cancellation
Consisting of 8 microphones (4 inward facing, 4 - outward) these headphones have excellent noise-cancellation. A feature called "Street Mode" uses the microphones to add noise from the outside to whatever's currently playing allowing you to be aware of your surroundings. You can also adjust how much outside noise you wish.
Pro Companion app offers lots of customizability
There are iOS and Android companion apps for advanced settings. These allow for equalization, virtualization, turning noise-cancellation on and off, changing output frequencies and sound stage among other things. These settings can be applied on an artist/album/song basis and shared with other owners of Zik headphones.
Con Can be a hassle to take on the go
The industrial design of the Parrot Zik 2.0 looks amazing, but also comes at the cost of the portability. The ear cups cannot be folded into the headband. You will need to account for its size when travelling. An alternative will be for you to hang these off your neck while on the go, which may not always be comfortable.