Window Intercom System

In order to ensure the greatest possible health protection for the employees, glass partitions are set up for direct customer contact at many reception desks, ticket counters, gatehouses, hotel receptions, concert box offices or patient receptions in surgeries.

So, 2 people wearing masks speak through this glass partition and no one understands the other. What can be done?

Thanks to full-duplex support, TOA's NF-2S window intercom system provides a natural, easy-to-understand, and high-quality two-way communication. With powerful DSP for echo and noise cancellation, the NF-2S system is an all-in-one solution with easy set-up, even for end users without technical expertise. The flexible system is customisable for the operator using a headset.

  • Small and compact with discreet design
  • Both channels seperately controllable by the operator, varied options at Base Unit (Mute and Volume) or by remote device (Mute)
  • Easy installation, flexibly remountable thanks to magnets - no tools required
  • Low-Cut Mode - enhance the clarity of speech in muffled sounding spaces
  • Compensation of high frequency loss due to mask wearing (TOA voice lift)
  • The system is flexibly extendable to match perfectly with different applications

  • Specifications
  • Application examples
  • Equipment
  • Tender text
  • Downloads
Specifications for product:
Power source

100 - 240 V AC, 50 / 60 Hz (use of the supplied AC adapter)

100 - 240 V AC, 50 / 60 Hz (use of the supplied AC adapter)

Power source

100 - 240 V AC, 50 / 60 Hz (use of the supplied AC adapter)

100 - 240 V AC, 50 / 60 Hz (use of the supplied AC adapter)

Power / current consumption

200 mA

S/N ratio

≥ 73 dB (volume: min.)
≥ 70 dB (volume: max.)

Rated output

1.7 W

Audio input

Base Unit: mic input, -30 dB, 3.5 mm mini jack (4P), phantom power supply

Audio output

Base Unit: 16 Ω, 3.5 mm mini jack (4P)

Control input

Base Unit:
External mute input: No-voltage contact inputs
Open voltage: 9 V DC or less, short-circuit current: 5 mA or less
Push- in terminal block (2 pins)


Power indicator LED, Signal indicator LED

Operating temperature

0 °C to +40 °C

Operating humidity

85 % RH or less (no condensation)


Base unit: 127 x 30 x 137 mm (W x H x D)
Sub-unit: 60 x 60 x 22.5 mm (W x H x D)


Base unit, Case: ABS resin, white, paint
Base unit, Panel: ABS resin, black, paint
Sub-unit: ABS resin, white, paint


Base unit: 225 g
Sub-unit: 65 g (per piece)

Accessory (included)

AC adapter x 1, Power cord (1.8 m) x 1, Dedicated cable (4 pins, 2 m) x 2, Metal plate x 2, Rubber foot for Base Unit x 4, Mounting base x 4, Zip tie x 4

Application examples
Tender text