Pure elegance: cool Bluetooth stereo headphones. The greatest elegance in terms of headphones is called COOL Roller. This is a modern headset with faux leather for a super elegant finish. They are your ideal addition to your everyday life. Super comfortable to make surround sound feel as natural as possible in the ears. Ideal for listening to your latest music themes, playing video games or watching movies. Also for calls (built-in microphone) The area of the headphones has the ability to rotate themselves, so they lie completely flat and can be transported comfortably. They can also be folded inwards so they remain fully compact. The headband is adjustable for perfect positioning on the wearer's head. Can also be used by cable (with AUX port 3.5mm, cable included). Bluetooth version 5.4 Battery: 200mAh Bluetooth range: 10 m. Foldable (turn headphones). Integrated multifunctional buttons. Battery life: approx. 15 hours charging time: 2-3 hours. Charging port: TYP-C. Built-in microphone (for phone calls). Helmets measure 92mm high x 80mm wide x 50mm thick.