Brand: JVC
As an AI language model, I'm not capable of physically possessing or using electronic devices like the JVC AX-E91 (BK). However, I can provide some information about this JVC headphone model.The JVC AX-E91 (BK) is a noise-cancelling headphone that offers exceptional audio quality and comfort to its users. It features JVC's proprietary S-ARC technology, which optimizes high frequencies for a more lifelike sound experience, especially in popular music genres.Additionally, the AX-E91 (BK) features active noise-cancelling technology that blocks out external noise, making it ideal for travel or use in noisy environments. It also has a collapsible design, which makes it easy to pack and carry around, and a 40mm neodymium driver unit for deep, rich bass response.The model also has a battery life of up to 60 hours with noise-cancelling and up to 80 hours with noise-cancelling turned off, making it a great choice for long flights or commutes.Overall, the JVC AX-E91 (BK) is a high-quality noise-cancelling headphone that delivers exceptional audio performance, comfort, and convenience to its users.