City Earphone 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: Speaker:φ 14.2mm Dynamic Type Impedance:32 Ohms±20% Frequency:20-20KHZ Sensitivity:105±3dB(at 1KHZ) Max.Input Power:5mW Microphone:condenser type Polar Pattern:Omni-directional Sensitivity:-42+3dB(at1KHZ) Input Connection: Lightning Cable Length:1.20±0.03M.