• The CTA-100 headset amplifier is compatible with almost all telephone systems / brands.
• Amplifier function, output and input volume can maintain high, clear and resonant level.
• Three (3) microphone selection types, in order to achieve the best transmitting sound.
• The performance to price ratio is much better than other brands.
• Batteries not included

The CTA-100 Amplifier is ideal for professionals, particularly VoIP users. It delivers precise levels of listening comfort, sophisticated hearing protection, and superior audio performance. The audio processor includes near-universal compatibility with single and multi-line telephones, as well as ergonomically designed volume, headset/handset and mute controls.