Professional FM Systems

The Okayo Product Family

Modular, cost effective wireless microphone system

Our wireless microphone product range is suitable for a wide range of applications such as guided tours, schools, seminars or meetings, product demonstrations, speeches, places of worship, exercise classes etc.

The standard products from UnivoxAudio are based on Channel 70 operating between (863 – 864.99 MHz) where there are 16 discrete frequencies, also called channels (1-16 ) to choose from.

No installation is needed and the system can easily be moved between different premises or used outdoors. If you forget to charge the batteries, you can easily replace them with standard batteries for the performance.

Products operating in different frequency ranges are also available.
The products, transmitters, receivers, microphones , speakers and accessories are all available separately or can be purchased as part of a system.

The system categories are:

Wireless Microphone System

Reliable, Affordable ,Hi Fidelity, FM Wireless Audio

Our Wireless Microphone System can be used in almost any venue where traditional wired microphones are used. The standard systems operate on channel 70, (863MHz -865 MHz), the unlicensed band for radio microphones. Equipment operating on other channels is available on request. The systems have a range of 100m free space and use diversity receiver technology to minimise interference.
The performance, quality and reliability of the range are a match for other brands that are considerably more expensive. Within the range there is a body pack transmitter with a variety of detachable microphones, a hand held transmitter (radio microphone), four different diversity receivers and four different charging stations.

A system includes at least 1 microphone and transmitter, 1 diversity receiver (base station) and a suitable battery charger.

Features & Benefits

  • Operating distance 100 m
  • 16 switchable channels (863-865MHz)
  • Up to four microphones can be used simultaneously
  • Diversity receivers with one, two or four receiver modules available
  • Mounting kits for use in 19” racks available
  • Body pack transmitter for use with tie clip or headset microphones
  • Hand held transmitter microphone
  • Charging stations for two body pack or one body pack/one hand held transmitters

Wireless Rechargeable Loudspeakers

The Mobile Public Address with Bluetooth

With our wireless rechargeable loudspeakers you can bring your own PA system with you, even if that means taking it outside.
The system is truly portable weighing only 3.2Kg and with excellent sound reproduction is ideal for speech and music. Fully charged it will operate for 2-4 hours and with no trailing wires it can be moved easily from one room to another.

The GPA-660W* is available with one or two built-in wireless receivers operating in the unlicensed channel 70 (863MHz – 865 MHz) of the radio spectrum.
To transmit to the GPA-660W a wireless microphone as featured with our wireless microphone system is required.

The GPA 660W* also features Bluetooth, USB and SD connectivity

Brochure for PA SystemsPA Systems Brochure

* The GPA-660W^* is a stocked item. Other portable loudspeaker PA systems re also available - Please check for delivery time

There is a wide range of microphone transmitter types, these are offered as options along with, tripods, and other accessories

Features & Benefits

  • Lightweight, easy to operate and stylish design
  • Bluetooth connectivity
  • High-efficiency power of 30W rms output
  • Suitable for audiences up to 200 people
  • Plug-and-play receiver modules with up to 16 selectable frequencies
  • Mic in, Aux in/out, for connection to other external audio source. Such as CD player, iPod, instruments, etc.
  • External audio sources can be mixed simultaneously to the input.
  • Optional MP3 player modules with USB / SD card reader and remote controller.

Wireless Tour Guide System With Assistive Listening Option

Quality audio presentations on the move

Our tour guide system with assistive listening option helps tour groups overcome disturbing background noise and distance from the guide even in noisy surroundings. The system consists of a transmitter, a number of pocket size receivers with rechargeable batteries and one or several charging stations.
It is easy set up and use and operates over a distance of 100 metres. When fully charged the system can be used for 8-10 hours. The system is suitable for in and outdoor guided tours, and can also be used in meetings where one or more interpreters provide real time translation.
It accommodates any number of users with additional receivers. Hearing aid users are easily accommodated by use of an optional neck loop although for best performance, hearing aid enhanced transmitter/receiver combinations should be used as with the Personal wireless conference system. Our Wireless Tour Guide System is easy to use and requires no installation. It can be used together with our Wireless rechargeable loudspeakers.

Features & Benefits

  • Portable, wireless listening, easy to set up and use. No installation is required
  • Operating distance 100 metres (open field)
  • Strong attractive aluminium case design for both pocket transmitter and receiver
  • 16 switchable frequencies in Channel 70 (863-865MHz) (free to use)
  • LCD channel display to show the selected channel by up and down button, frequency, battery condition, and error code
  • Allows an unlimited number of additional receivers to be used with one transmitter.
  • Pocket size , rechargeable wireless transmitters and receivers
  • Fully charged batteries provide 8-10 hours use
  • Can also be used with standard batteries
  • Charging stations for two body pack or one body pack/one hand held transmitters
  • EJ-7XT transmitter incorporates MIC. Input and AUX. input allowing audio sources from a CD or MP3 player
  • EJ-7R receiver includes Aux. Output for connecting amplifier or active speaker to form a wireless receiver system and 3.5mm jack for use with earphones or neck loop
  • Charger available for 2, 12, 36 or 50 units

Tour Guide System BrochureTour Guide Brochure.

Note: Only Co- Developed Univox-Okayo branded Transmitter and Receiver modules have been enhanced for hearing aid use

Contact us for full details

DigiBee -Digital Tour Guide System With Assistive Listening Option

Quality audio presentations on the move

DigiBee digital tour guide system consist of body pack transmitters and receivers which are easily charged in the charger case. They can be used for up to 15 hours when fully charged, but if you have forgotten to charge the devices you can temporarilly replace the rechargeable battery with a standard AA alkaline one

Hearing aid users can benifit from their T-coil by using a compatible neck loop.

The transmitters and receivers only weigh 70 grams including the single AA rechargeable battery. The compact size and the excellent interference-free sound means the system is an excellent choice for small guided tours.

Univox – co-developed with OKAYO
Univox and Okayo have co-developed the DigiBee body pack transmitters and receivers to improve speech intelligibility for hearing aid users.

To comply with accessibility requirements and provide a good audio experience even for the hard of hearing always use the Univox version in the DigiBee range.

Features & Benefits

  • Portable, wireless listening, easy to set up and use. No installation is required
  • Operating distance 50 metres (Line of Sight)
  • Small, lightweight and robust case design for both pocket transmitter and receiver
  • 17 digital switchable frequencies in Channel 70 (863-865MHz) (free to use)
  • LCD channel display to show the selected channel by up and down button, frequency, battery condition, and error code
  • Allows an unlimited number of additional receivers to be used with one transmitter.
  • Pocket size , rechargeable wireless transmitters and receivers
  • Fully charged batteries provide 10-15 hours use
  • Can also be used with standard batteries
  • DigiBee transmitter incorporates MIC/Aux Input so other audio sources such as CD or MP3 player can be used
  • DigiBee receiver includes ear piece. 3.5mm jack for use with earphones or neck loop
  • Charger available for 2, 25 and 50 units

Tour Guide System BrochureDigiBee Brochure.

Note: Only Co- Developed Univox-Okayo branded Transmitter and Receiver modules have been enhanced for hearing aid use

 

FM Enhanced Induction Loop Systems

Radio microphones providing the input signal to an induction loop

Our FM Enhanced Induction loop systems are professional, modular systems for use in schools and other premises that need a hearing loop system with wireless microphones.

The inputs to an induction loop system are critical to the user experience. High quality audio with good rejection to background noise is important. To achieve this, good quality microphones positioned as close as possible to the person speaking are required. In the teaching environment and similar applications, radio microphones offer the best solution, they can be held or better worn, allowing the teacher to move freely around the class room, but never more than a few centimetres from a microphone.

The systems are easily configured based on your needs. Up to four wireless microphones in channel 70 (863-865MHz) can be used simultaneously. To operate more wireless microphones simultaneously, add receivers and microphones in another channel (for example 740-852MHz or 794-806MHz) up to eight wireless microphones can be used simultaneously.

Choose your induction loop system and then add your radio microphones or choose from one of our pre-packaged kits

Features & Benefits

  • Modular system with loop amplifier and wireless microphones
  • Traditional loop amplifier or Super Loop System
  • Diversity receiver for one to four microphones
  • Different types of microphones/pocket transmitters with rechargeable batteries
  • Microphones/transmitters can also be used with alkaline batteries
  • With or without built-in AutoScart (Active automatic Scart for use with UniVox amplifiers. Gives always the right sound when using VCR, SAT, Digital tuner or similar device following the SCART standard.)
  • With or without built-in Lip Synchronisation (automatic synchronisation of sound that is often needed when you connect a loop amplifier or other device to a flat screen TV)

Personal Wireless Conference System

Hear everything at your next meeting using your own portable radio system and T-coil enabled hearing aid

With our personal wireless conference system the days of not hearing at the meeting or conference are finally over.

Enjoy crystal clear sound through your T-coil enabled hearing aid for up to 12 hours wherever you are.

The basic system, (System 1) comprises a boundary microphone, portable transmitter, portable receiver and neck loop in a stylish carry case. The transmitter is located onto the boundary mic by a magnet and positioned on the meeting table or other suitable location near the people you need to hear. With the portable receiver set to the same frequency and the neck loop connected, you will hear everything clearly on the T- (or MT) position of your hearing aid.

System 2 is for larger conference tables, where it may be advantageous to use 2 boundary microphone/transmitter pairs.

The portable transmitters and receiver are provided with non rechargeable batteries. Rechargeable batteries and charger can be supplied as options.

For even greater versatility a tie clip or headset microphone can be ordered separately. If you don’t want to use the included neck loop you can order the system with a pair of headphones or a single-sided earphone instead.

Features & Benefits

  • Two systems available – with one or two boundary microphones
  • 16 switchable channels (863-865MHz)
  • Body pack transmitter and receiver included
  • Neck loop included (can be switched into headphones or single-sided earphone)
  • Stylish and practical carrying case
  • Tie clip or headset microphones and charging station options (ordered separately)

Pre-Recorded Tour Guiding Systems

Quality audio presentations on the move

Our pre-recorded tour guiding systems enable your visitors to look learn and enjoy your exhibits with comentary at their own pace. The basic system consists of a number of pocket sized rechargeable audio players and a charging station which, with our custom software, is also used for the audio file upload.

On the basic models, the audio file is selected and played by entering the assigned audio file number which you would display by the exhibit. Other systems are operated by image recognition or GPS location


Audio files are easy to upload on all handset types and simple to use. They will operate for up to 10 hours on a single charge and can be used with or without an earpiece or headphones reducing cleaning time. Some systems are also suitable for outdoor use. They can all be used with multilingual files.


Our Pre-Recorded Tour Guide Systems are easy to use and requires no installation.

Features & Benefits

  • Pocket size, rechargeable handsets
  • Easy to Upload/update handsets
  • Easy to operate
  • GPS option
  • Compatible with multilingual audio files.
  • Rugged, erganomic handsets
  • Colour display on most models
  • Easy Clean
  • Number of players is unlimited
  • Fully charged batteries provide 8-10 hours use

Tour Guide System BrochureTour Guide Brochure.

Contact us for full details

Assistive Listening for Transport

Assistive Listening for Transport - UnivoxAudio

Pre-recorded Tour Guides

Pre-recorded Tour Guides

Professional FM Systems

Professional FM Systems

Live Tour Guide Systems

Live Tour Guide System

Fixed Architecture DSP

Fixed Architecture DSP

Open Architecture DSP

Open Architecture DSP

Digital Audio Amplifiers

Digital Audio Open Amps