Feature:1. HD MICROPHONE: Customer service headphone has a built in HD microphone that can be twisted at will to give you a loud and clear voice. Provides clear conversations even in noisy environments.2. COMFORTABLE WEAR: Cell phone headset features an ultra lightweight design to provide you with an comfortable wearing experience. Soft ear cushions and flexible headband won't put any strain on your ears.3. PLUG AND PLAY: Call center headphone is easy to use with three single 3.5mm plugs. Plug and play, just plug the headset into your smart device, no driver required, enjoy more convenience.4. RUGGED AND FLEXIBLE: Telephone headset is designed with rugged construction and ABS material to ensure superb performance and make it durable. Long headset cable provides flexibility for mobility.5. RANGE OF APPLICATIONS: Single ear telephone headset for devices with a 3.5mm headset jack. Ideal for home, office, call center, telemarketing, insurance, customer service, teleconferencing, etc.Specification:Item Type: Telephone HeadsetModel: X6S 3.5Material: ABSColor: BlackType: Single EarPlug: Single 3.5mmFunction: CallScope Of Application: For Devices With 3.5mm Headphone JackSpeaker Parameters:Sensitivity: 1053dB (At 178mV 1KHz)Voice Coil Impedance: 15015 (At 1KHZ)Frequency Characteristics: 100Hz-10KHzDistortion: 5% (At 178 MV 1KHZ)Microphone Parameters:Directivity: Single PointingSensitivity: -402dB (2.0V, 2.2K, 1KHz)Distortion: 5% (At 4.5V 2.2K 1KHZ)Frequency Characteristics: 200Hz-6KHzCurrent Consumption: 100-500A.Package List:1 xTelephone Headset1 x Instruction Book