Brand Name: NoEnName_Null Style: Wired in-ear headphones Vocalism Principle: Dynamic Origin: Mainland China Audio latency: 1ms Material: Metal Speaker maximum output power: / High-concerned chemical: none whether electrical: No Communication: Wired Volume Control: No Charging Time: 0 Control Method: Others Category: Earphones & Headphones Department: Unisex-adult Impedance Range: up to 32 Ω Active Noise-Cancellation: No Frequency Response Range: 10 - 20000 Wireless Type: None Resistance: 32 Control Button: No Driver Diameter: 10 Sensitivity: 108 Is wireless: No Total Harmonic Distortion: 1 With Microphone: No Choice: yes semi_Choice: yes