H390D‑RJ9‑MVA Telephone Headset Dual Ear RJ9 Plug Wired Black Noise Canceling Office Business Headse

Feature: 1. [Noise Canceling] Built in HD microphone can be twisted at will for less noise and clearer sound. Even in noisy environments can provide clear conversations, so your voice is clear. 2. [All Day Comfort] Soft ear cushions and flexible headband won't put any burden on your ears The ultra lightweight design ensures that you stay focused on your conversation and maintain lasting wearing comfort. 3. [Easy To Use] Plug and play, no driver required, support speaker volume adjustment, microphone mute, six positions line sequence adjustment and other functions, easy to use. 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] Compatible with devices with RJ9 headset jack, ideal for home office, call center, telemarketing, insurance, customer service, teleconferencing, etc., with a wide range of uses. Specification: Item Type: Calling Headset Model: H390D-RJ9-MVA Material: ABS Color: Black Type: Binaural Plug: RJ9 Functions: Call, Speaker Volume Adjustment, Microphone Mute, Six Speed Line Sequence Adjustment Scope of Application: Compatible with RJ9 Headphone Jack Devices Speaker Parameters: Sensitivity: 105±3dB (at 178mV 1KHz) Voice Coil Impedance: 150±15Ω (at 1KHZ) Frequency Characteristics: 100Hz-10KHz Distortion: ≤5% (at 178 mV 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 Calling Headset