Multi-functional 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: 5.4 Speaker size: 40mm Wireless distance: 10-15M Standby time: 30H; Music time: 26H Talk time: 7H; Battery: 300mAh/3.7V Charge time: ≤2.5H Charge port:Type-C; Wireless Frequency： 2402 – 2480 MHz; Frequency response range： 50HZ-20KHZ Sensitivity： 117±3dB; Impedance： 32Ω.