Take your audio experience to the next level with these Sennheiser HD 450BT headphones. With a sleek black design, these headphones are suitable for use in the gym, while commuting, traveling, and at work. They feature double earpieces and have a frequency range of 20 Hz to 20KHz, making them perfect for listening to any kind of music. These over-ear headphones have a built-in microphone and use Bluetooth connectivity to effortlessly pair with your devices. The HD 450BT model is manufactured in China and has an impedance of 32 ohms. Get ready to enjoy your favorite tunes like never before with these high-quality Sennheiser headphones.