The Sony RF400 Wireless Home Theater Headphones in Black offer a powerful listening experience with 40mm drivers and a frequency range of 10-20,000 Hz. These over-the-ear headphones feature a comfortable headset design with an adjustable headband for personalized fit. The wireless Bluetooth technology allows for convenient use without being tethered, making them suitable for both studio and live monitoring setups. The Sony RF400 headphones come with a charger included and are perfect for immersive audio experiences at home or on the go.