The Direct Sound EXTW37 PRO Headphones are professional closed studio isolation headphones designed for high-quality sound. With a wireless Bluetooth connection range of 50 feet and a standby time of 300 hours, these headphones provide a comfortable and convenient listening experience. The passive attenuation of 36.7 dB ensures a clear and balanced sound, perfect for audio professionals. The sleek black design and lithium polymer battery make them a stylish and reliable choice for anyone looking for top-notch sound quality.