Feature:1. Noise Reduction Design: The telephone headset with built in HD microphone, enables clear conversations even in noisy environments, and can be twisted at will.2. Comfortable to Wear: Phone headset provides you with ultra light wearing experience. Soft ear pads and flexible headbands don't put any strain on your ears.3. Convenient to Use and Compatible: Easy to use, four section single 3.5mm plug (elbow); Plug and play, no drive. Compatible with 3.5mm headphone jack.4. Ultra Durable: The service headsets are designed with a rugged construction and ABS material to ensure superior performance and make them last long.5. Application: The business headset is ideal for home offices, call centers, telemarketing, insurance, customer service, teleconferencing, and more.How to Use:Plug and playSpecification:Item Type: Business HeadsetMaterial: ABSModel: H360-3.5Colour: BlackType: MonauralPlug: 4 Sections Single 3.5mm (Bend)Function: CallApplication: For Devices with 3.5mm Headphone JackSpeaker Parameters:Sensitivity: 105±3dB (at 178mV 1KHz)Voice Coil Impedance: 150±15Ω (at 1KHZ)Frequency Characteristic: 100Hz-10KHzDistortion: ≤5% (at 178mV at 1KHZ)Microphone Parameters:Directivity: Single PointSensitivity: -40±2dB (2.0V, 2.2KΩ, 1KHz)Distortion: ≤5% (at 4.5V 2.2KΩ 1KHZ)Frequency Characteristic: 200Hz-6KHzCurrent Consumption: 100-500υA Package List:1 x Business Headset