Feature: 1. [Noise Reduction] With high definition microphone, can be arbitrarily twisted, even in a noisy environment can provide clear dialogue, less noise, clearer sound. 2. [Comfortable] Soft ear cushions, flexible headbands, ultra lightweight design, will not cause any burden on your ears, you can concentrate on talking, long lasting comfort. 3. [Easy To Use] 3.5mm elbow plug telephone headset, plug and play, no need to drive, support speaker volume adjustment and microphone mute, easy to use. 4. [High Quality Material] The headphone is made of high quality ABS material, with a sturdy structure, ensuring super performance, durable, sufficient cord length, and flexible use. 5. [Widely Compatible] Suitable for devices with a 3.5mm headphone jack, it is an ideal choice for homes, offices, call centers, telemarketing, customer service, teleconferences, etc. Specification: Item Type: Telephone Headphone Material: ABS Model: H360-3.5MV Color: Black Type: Single Ear Plug: 3.5mm/0.1in Plug (Elbow) Function: Call, Speaker Volume Adjustment, Microphone Mute Scope of Application: Used for Devices with 3.5mm/0.1in Headphone Jack Speaker Parameters: Sensitivity: 105±3dB (at 178mV 1kHz) Voice Coil Impedance: 150±15Ω (at 1kHz) Frequency Characteristics: 100Hz-10kHz Distortion: ≤5% (at 178mV 1kHz) Microphone Parameters: Directivity: Single Point Sensitivity: -40±2dB (2.0V, 2.2KΩ, 1kHz) Distortion: ≤5% (at 4.5V 2.2KΩ 1kHz) Frequency Characteristics: 200Hz-6kHz Current Consumption: 100-500µA. Package List: 1 x Telephone Headphone