Wireless Bluetooth Headphones plus with apt-X and apt-X LL. You can enjoy low latency, good fault tolerance, and high sound quality. Put them on, and suddenly everything changes. Your music is deep, powerful and balanced, and so quiet that every note sounds clearer. Even air travel becomes enjoyable, as engine roar gently fades away. No matter how noisy the world is, it's just you and your music-or simply peace and quiet. And the Bluetooth headphones support both wireless and wired modes, switch 2 modes by a 3.5mm Audio Cable. Keep listening even the battery runs out.