Poly SHS 1890-25 Push-to-Talk Amplifier

The Poly 8K7U0AA#AC3 is a push to talk amplifier that pairs with any Poly H Series headset to give you precise control over every conversation, call after call, shift after shift.

A carbon microphone amplifier increases vocal clarity so the person on the other end hears natural tones without hiss or distortion. The PJ-7 male connector locks into compatible desk phones and communication consoles, keeping the link steady through long sessions.

The front switch supports both momentary and locking modes. Tap and hold when you need to speak for a few seconds or flip it to lock the channel open during extended briefings. This design keeps background noise out until you decide to go live.

With a 25 foot coiled cable you can lean back, stand up, or move around the workstation without tugging on the headset. When you return to your seat the cable retracts neatly, so your desk stays clear of clutter.

The amplifier is housed in rugged materials and finished in black so it looks at home in dispatch centers, call floors, and security offices. Poly backs the unit with a limited warranty that lasts two years.

Highlights:

• Compatible with Poly H Series headsets
• Carbon microphone amplifier delivers clear voice transmission
• PJ-7 male connector provides a connection that is secure and reliable
• Push to talk switch offers momentary and locking modes
• 25 foot coiled cable adds reach while staying tangle free
• 50 Ohm impedance tuned for consistent audio performance
• Housing built for durability and finished in black
• Supported by a limited warranty that lasts two years