Feature:1. COMFORTABLE TO WEAR: Soft ear pads and flexible headbands don't cause any burden. The ultra lightweight design ensures you stay focused on your conversation for lasting comfort.2. CLEAR SOUND QUALITY: Built in HD noise reduction makes your voice loud and clear. Provides clear dialogue even in noisy environments.3. SIMPLE OPERATION AND HIGH FLEXIBILITY: Easy to use, 2.5mm plug; Plug and play, no drive, easy to use. The long headphone cable provides mobility.4. DURABLE MATERIAL: The earphones are designed with a robust construction and materials that ensure superior performance and make them durable.5. WIDE APPLICATION: Applicable to devices with 2.5mm headphone jack. Ideal for home offices, call centers, customer service, teleconferencing, and more.How to Use:Plug and play Specification:Item Type: Call Center HeadsetMaterial: ABSModel: H360D - 2.5 Color: Black Type: Both Ears Plug: 2.5mm Plug Function: Call Application: for Devices with 2.5mm Headphone Jack Horn Parameters: Sensitivity: 105±3dB（在178mV 1KHz） Voice Coil Impedance: 150±15Ω（At 1KHZ） Frequency Characteristics: 100Hz-10KHz Distortion: ≤5% (at 178 mV 1KHZ) Microphone Parameters: Directivity: Single Direction Sensitivity: -40±2dB（2.0V，2.2KΩ，1KHz） Distortion: ≤5%（At 4.5V 2.2KΩ 1KHZ） Frequency Characteristics: 200Hz-6KHz Consumption Current: 100-500υA Package List:1 xCall Center Headset