Features: 1.Noise Canceling Headset: Built in HD microphone that can be twisted at will, makes your voice loud and clear. Provides clear conversations even in noisy environments. 2.All Day Comfort: Soft ear cushions and flexible headband won't weigh down your ears. Ultra lightweight design ensures you focus on your conversation with long lasting wearing comfort. 3.Easy to Use: Three sections of dual 3.5mm plugs; plug and play, no driver required, easy to use, support speaker volume adjustment and microphone mute. 4.Ultra Durable: The headset is designed with rugged construction and materials to ensure superb performance and make it durable. Long headphone cable provides flexibility of movement. 5.Wide Compatibility: The headset is suitable for PC and computers. Ideal for home office, call center, telemarketing, insurance, customer service, teleconferencing, etc. specification:Item Type: Telephone Headset Material: ABS Color: Black Type: Binaural Plug: Dual 3.5mm Function: Call, speaker volume adjustment, microphone mute Scope of Application: Fit for devices with 3.5mm headphone jack Speaker Parameters. Sensitivity: 1053dB (At 178mV 1KHz) Voice Coil Impedance: 15015 (At 1KHZ) Frequency Characteristics: 100Hz-10KHz Distortion: 5% (At 178 MV 1KHZ) Microphone Parameters. Directivity: Single Pointing Sensitivity: -402dB (2.0V, 2.2K, 1KHz) Distortion: 5% (At 4.5V 2.2K 1KHZ) Frequency Characteristics: 200Hz-6KHz Current Consumption: 100-500A PackageList:1 x TelephoneHeadset 1 x Manual