Provides headset interface for phone without a headset jack Adjustable amplification of headset transmit and receive Powered by 12V power supply (included) or 2 AA batteries (optional) Headset On/Off button Mute button Headset volume control Inuse indicator LED 3 RJ11 ports for headset, telephone handset, and telephone

• Provides headset interface for phone without a headset jack Adjustable amplification of headset transmit and receive Powered by 12V power supply (included) or 2 AA batteries (optional) Headset On/Off button Mute button Headset volume control Inuse indicator LED 3 RJ11 ports for headset, telephone handset, and telephone
• Headset Amplifier and Interface Module
• Dimensions: 7.00x2.00x6.00
• Item Weight: 0.50
• 100% Satisfaction

Provides headset interface for phone without a headset jack Adjustable amplification of headset transmit and receive Powered by 12V power supply (included) or 2 AA batteries (optional) Headset On/Off button Mute button Headset volume control Inuse indicator LED 3 RJ11 ports for headset, telephone handset, and telephoneCortelco