Item Type: 3.5mm Binaural Business HeadsetMaterial: ABSModel: H360D-3.5VAColour: BlackType: BinauralPlug: 3.5mm ElbowFunction: Call, Adjustable VolumeScope of Application: Compatible with landline phones or for Dect cordless phones with 3.5 mm headphone plugSpeaker Parameters:Sensitivity: 1053dB (at 178mV 1kHz)Voice Coil Impedance: 15015 (at 1kHz)Frequency Characteristic: 100Hz-10 kHzDistortion: 5% (at 178mV at 1kHz)Microphone Parameters:Directivity: Single PointSensitivity: -402dB (2.0V, 2.2K, 1kHz)Distortion: 5% (at 4.5V 2.2K 1kHz)Frequency Characteristic: 200Hz-6 kHzCurrent Consumption: 100-500APackage List1 x 3.5mm Binaural Business Headset1[Outstanding Sound Quality] HD mic lets you have lifelike, vibrant conversations. You can hear conversations with complete clarity. 2[Comfort Wear] This telephone headset comes with large size soft ear cushions and a flexible headband for super comfortable wear. 3[Plug and Play] Plug and play, no drivers needed for Android, tablets, for Windows systems, etc. to enjoy extended convenience. 4[Built To Last] This 3.5mm telephone headset with ABS material and long cord and thoughtful design make it very strong. 5[Button Touch] The answer can be easily turned on or off at the touch of a button, and this headset competes with for Jabra for Skype headset.