Black Samurai Wireless Headphone delivers crisp, balanced sound with reliable wireless performance for work, study, travel, and workouts. Designed for all‑day comfort, it pairs quickly, holds a stable connection, and keeps you focused with clear audio and an ergonomic fit. Perfect for music, calls, and meetings. Key details: Wireless version: 5.3 Charging Voltage:5V/1A; Wireless frequency: 2.402-2.480GHz Wireless distance: 10m; Frequency response: 20Hz-20KHz Output power: 20mW; Signal to noise ratio: 88DB Charging time: 2 hours.