| Model Number | KJ-990 |
|---|---|
| Abridged Description | Digital Headset Amplifier |
- Expertise makes better user experience and quality communication
-
Build your hopes on KJ Electron. We present the future of sounds with our user-friendly, high workability and global design products. Share your trust with us and get supported. We help you start great business for your prosperity.
-
• Headset amplifier for real-timeacoustic level control
• Easy connection to both phone and headset
-
• Volume control (RX, TX)
• Microphone mute function
-
• LED display (volume and function settings)
• Connects to a PC for recording and playback.
-
• USB-Ctype for power and data line
• Often used with RJ-equipped desk phones.
-
• AGC(AutoGain Control) for TX audio
• Bassand Treble sound selection
-
• UltraLow background Noise
• 2ndMIC on/off function
-
• Wire compatibilityfor different headsets
• Telephone compatibilityswitch select
| Receiving volume gain | -8dB ~ +16dB |
|---|---|
| Transmitting volume gain | -8dB~ +24dB |
| Distortion | Less than 3% at 1KHz |
| Receiving Frequency range | 200Hz ~ 8KHz |
| Transmitting frequency range | 200Hz ~ 10KHz |
| Input Power | 5V |
| Power Dissipation | Max. 420mW |
| Size | W60 * L114 * H31.5 mm |
| Net weight | 180g |
| Operating temperature | 0℃to 50 ℃ |
KYUNG JIN ELECTRON CO., LTD / Address : Rm#304-2, Hanshin IT Tower 2-cha, 47 Daigital-ro 9-gil, Geumcheon-Gu, Seoul KoreaTEL : +82-2-2025-6180 / FAX : +82-2-2025-6182 / MAIL : kj@kj-headset.co.kr