STS-K001 Bridge Bar System The STS-K001 Bridge Bar System features our most popular combined speaker and microphone module in a bridge bar style. It also includes the STS-A31H Amplifier, an under the counter hearing loop and a free-standing staff microphone and speaker unit. It is ideal for a variety of environments, whatever the ambient noise conditions. Included Components: STS-A31H Window Intercom Amplifier – Provides full open duplex communication and system control. STS-B80 Customer Bridge Bar – Our most popular combined speaker and directional microphone module, designed for the customer side. STS-SU1 Staff Loudspeaker Unit – Free-standing combined speaker and directional microphone module for the staff side. IL-AE99 Under-Counter Hearing Loop Aerial – Assists hearing aid users via induction loop technology. PS-55 Power Supply – Level VI energy-efficient power source for system operation. The STS-K001 Bridge Bar System is perfect for natural speech with a microphone in the center and speakers on either side. The all-in-one design makes it effortless to install. Downloads Product Data Sheet Installation Manual