Feature:

1. PLUG AND PLAY 3.5mm office headset plug and play, no driver required, easy to use.; 4 sections single 3.5mm (small straight head). Less noise and clearer sound for your chat.
2. NOISE CANCELING TECHNOLOGY 3.5mm telephone headset with noise canceling microphone technology filters out all unwanted background noise for clear conversations on calls.
3. FLEXIBLE BOOM ARM Double sided headset has a flexible boom arm that ensures that your microphone stays in the perfect position, giving a more streamlined appearance.
4. DESIGNED WITH YOU IN MIND Communication headphone is suitable for business or other unified communications platforms that require a consistently excellent hands free solution.
5. SUPER PERFORMANCE Binaural 3.5mm business headset is designed with sturdy construction and materials to ensure super performance. The long headphone cable provides flexibility on the move.

Specification:

Item Type: Binaural 3.5mm Business Headset
Material: ABS
Model: H390D-3.5
Colour: Black
Type: Binaural
Plug: 4 Sections Single 3.5mm (Small Straight Head)
Function: Call 
Scope of Application: Compatible with devices with a 3.5mm headphone plug
Speaker Parameters:
Sensitivity: 105±3dB (at 178mV 1KHz)
Voice Coil Impedance: 150±15Ω (at 1KHZ)
Frequency: 100Hz-10KHz
Distortion: ≤5% (at 178mV 1KHZ)
Microphone Parameters:
Directivity: Unidirectional
Sensitivity: -40±2dB (2.0V, 2.2KΩ, 1KHz)
Distortion: ≤5% (at 4.5V 2.2KΩ 1KHZ)
Frequency: 200Hz-6KHz
Current Consumption: 100-500υA

Package List:

1 x Binaural 3.5mm Business Headset