Feature: 1. HIGH COMPATIBILITY: The business headset has wide compatibility, compatible with devices with 2.5mm headphone jack. 2. WIDE APPLICATION: Ideal for home offices, call centers, telemarketing, insurance, customer service, teleconferencing, and more. 3. CLEAR SOUND: Noise cancelling phone headphones make your voice loud and clear. The microphone can be twisted at will. Plug and play, no driver required. 4. LIGHT AND COMFORTABLE: Ultra lightweight design ensures you stay focused on your conversation, with soft ear pads and flexible headbands for lasting wear comfort. 5. HIGH DURABILITY: The earphones are designed with solid construction and high quality ABS material for superior performance and durability. How to Use: Plug and play Specification: Item Type: Business Headset Material: ABS Model: H360-2.5 Colour: Black Type: Monaural Plug: 3 Sections Single 2.5mm (Small Bend) Function: Call Scope of Application: Compatible with Devices with 2.5mm Headphone Jack Speaker Parameters: Sensitivity: 105±3dB (at 178mV 1kHz) Voice Coil Impedance: 150±15Ω (at 1kHz) Frequency Characteristic: 100Hz-10 kHz Distortion: ≤5% (at 178mV at 1kHz) Microphone Parameters: Directivity: Single Point Sensitivity: -40±2dB (2.0V, 2.2KΩ, 1KHz) Distortion: ≤5% (at 4.5V 2.2KΩ 1kHz) Frequency Characteristic: 200Hz-6 kHz Current Consumption: 100-500υA Package List: 1 x Business Headset