Product Description Specifications Headphones with ANC (Active Noise Cancellation) system. Features: Headphones with ANC (Active Noise Cancellation) system. Significantly reducing external noise for an optimal sound experience. Dual connection: wireless via Bluetooth® 5.0 and 3.5mm jack, cable included. Foldable, hands-free and USB Decoration Position: Right & Left ear muffs Print Size: 25 x 30 mm Product Materials: Plastic Features: Bluetooth Features: Wireless Material: Synthetic