Feature:

1. NOISE REDUCTION: Noise cancelling headphones have a built in HD microphone that can be twisted at will and comes with a USB sound card to keep your voice clear. Provides clear conversations even in noisy environments.
2. EASY TO USE: Telephone headset is easy to use without special operations. Easily turn on and off answering, speaker volume up or down or microphone mute at the touch of a button, for all your daily needs, plug and play.
3. ALL DAY COMFORT: Monaural communication headset provides you with an ultra light wearing experience. Soft ear cushions and a flexible headband won't weigh down your ears, ensuring you concentrate on your conversation with long lasting wearing comfort.
4. EXTENSIVE COMPATIBILITY: Monaural customer service headphones are compatible with devices with RJ9 headset jacks and can also be used with devices with USB ports. Ideal for home offices, call centers, telemarketing, customer service, teleconferencing, etc.
5. ULTRA DURABLE: Monaural customer service headphones are designed with rugged construction and materials that ensure superb performance and make them durable. Long headset cord provides flexibility for mobility.

Specification:

Item Type: Phone Service Headset
Product Material: ABS
Model: H390D-RJ9-U900
Color: Black
Type: Binaural
Plug: RJ9, USB Sound Card
Function: Call, with USB Sound Card, Speaker Volume Up or Down, Microphone Mute
Scope of Application: Compatible with Devices with RJ9 Headphone Socket, Can Also Be Used for Devices with USB Interface.
Speaker Parameters:
Sensitivity: 105±3dB (at 178mV 1KHz)
Voice Coil Impedance: 150±15Ω (at 1KHz)
Frequency Characteristics: 100Hz-10KHz
Distortion: ≤5% (at 178mV 1KHz)
Microphone Parameters:
Directivity: Single Pointing
Sensitivity: -40±2dB (2.0V, 2.2kΩ, 1KHz)
Distortion: ≤5% (at 4.5V, 2.2kΩ, 1KHz)
Frequency Characteristics: 200Hz-6KHz
Current Consumption: 100-500υA

Package List:

1 x Phone Service Headset

1 x USB Sound Card

Note:

No line control function when using RJ9 plug.