Feature:1. Noise Reduction: With a high definition microphone, it can provide clear dialogue even in noisy environments, less noise, making your voice clearer.2. Comfortable: Soft ear cushions and flexible headband will not cause any burden to your ears, ultra lightweight design, comfortable to wear for a long time.3. Easy To Use: 2.5mm plug telephone headset, plug and play, no need to drive, easy to use, the microphone can be arbitrarily twisted, support speaker volume adjustment.4. Ultra Durable: The headphone is designed with sturdy structure and ABS material, with good performance and durability, long cord make it more flexible to use.5. Wide Compatibility: Compatible for devices with 2.5mm headphone jacks, and is suitable for home, office, call center, telemarketing, customer service, teleconference, etc.How to Use:Plug and play.Specification:Item Type: Telephone HeadsetMaterial: ABSModel: H360D-2.5VAColor: BlackType: BinauralPlug: 2.5mm/0.098in PlugFunction: Call, Speaker Volume AdjustmentScope of Application: Used for Devices with 2.5mm/0.098in Headphone JackSpeaker Parameters:Sensitivity: 105±3dB (at 178mV 1kHz)Voice Coil Impedance: 150±15Ω (at 1kHz)Frequency Characteristics: 100Hz-10kHzDistortion: ≤5% (at 178mV 1kHz)Microphone Parameters:Directivity: Single PointSensitivity: -40±2dB (2.0V, 2.2KΩ, 1kHz)Distortion: ≤5% (at 4.5V 2.2KΩ 1kHz)Frequency Characteristics: 200Hz-6kHzCurrent Consumption: 100-500µA Package List:1 x Telephone Headset