Design E25 Bluetooth® Anc Headphones in Solid Black. Light-Up Logo Headphones with Antibacterial Treatment & Soft-Touch Function. the Anc Function Enables Active Noise Reduction of 28 Db & the Microphone Enables Superior Call Quality. Features Bluetooth® 5.1, Edr Technology (Enhanced Data Rate), Embedded Microphone, Emergency Battery & a Built-In Radio. Comes with an Audio Connector to Connect Devices Without Bluetooth® Connection. Input & Output: 5V & 1A. Operating Frequency: 20 Hz - 20 Khz. Charger Time: 2 Hours. Delivered in a Polyester Mesh Bag & a Black Gift Box with Magnetic Closure (18 x 19 x 7 Cm). Includes 3 Years Warranty. Minimum Quantities Apply.