Item Type: Telephone Headset Material: ABS Color: Black Type: Monaural Plug: Dual 3.5mm Function: Call Scope of Application: for Devices with 3.5mm 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 Pointing Sensitivity: -40±2dB (2.0V, 2.2kΩ, 1KHz) Distortion: ≤5% (at 4.5V 2.2kΩ 1KHz) Frequency Characteristics: 200Hz-6KHz Current Consumption: 100-500μA 1. Clear Sound: The telephone headset has a built-in HD microphone that can be adjusted easily; the noise-canceling design delivers clearer sound and reduced background noise. 2. Comfortable to Wear: Monaural headset features an ultra-lightweight design. Soft ear cushions and a flexible headband provide comfort without putting pressure on the ears. 3. Easy to Operate: The 3.5mm communication headset includes dual 3.5mm plugs; plug and play, no driver required, simple to use. 4. Flexible and Durable: Designed with sturdy construction and quality materials for reliable daily use, ensuring consistent performance and long-lasting durability. 5. Wide Compatibility: Single-sided ear headphone is suitable for PC and other devices with a 3.5mm jack, ideal for home, office, call centers, telemarketing, insurance, customer service, and teleconferencing. Package Includes: 1 x Telephone Headset 1 x Instruction Book