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Contacta RF-TXHH-865 Portable Radio Frequency Handheld Transmitter


The Contacta RF-TXHH-865/915 is a superb Portable Radio Frequency Handheld Transmitter, featuring integrated multi-frequency transmitter and UHF technology. It is for use with Portable Radio Frequency Receivers RF-RX1-865/915, with two versions available that respectively work on 865MHz (UK/EU) or 915MHz (USA/AU) frequencies.

This microphone transmits sound wirelessly and directly to groups of receivers programmed on the same channel, making it ideal for use in lectures, events, and educational venues. The unit is supplied with 2x AA Alkaline batteries. However, rechargeable batteries can be used to power the unit and charged through the micro-USB charge port.

Product Applications:

Ideal for use in education venues or when a speaker addresses a group of people directly

  • Museums
  • Lecture Halls
  • Educational Venues
  • Community Centres
  • Entertainment Venues

Product Contents:

What’s in the box?

  • 2 x AA Alkaline batteries (in 865MHz, not in 915MHz)
  • Portable Radio Frequency Handheld Transmitter (RF-TXHH-865/915)


Physical Data

  • Finish: Grey
  • Weight: 270.5 g, or 0.59 lbs
  • Dimensions: 258 mm H x 49 mm Diameter

Technical Data

  • Latency: <4 ms@HQ
  • Battery Life: >8 hours
  • Mic Capsule: Dynamic
  • Emission Modulation: 4GFSK
  • Operation Range: >50 metres
  • RF Output: High: < 10 mW / Low: < 1 mW
  • Connectors: 2 x 3.5mm 4 contact-socket Micro-USB charge port
  • Battery: 2 x AA alkaline/ rechargeable NiMH battery (rechargeable batteries not supplied, alkaline included)

Compatible Accessories:

A list of compatible products

  • Micro-USB Power Cable (USB-M100)
  • Portable Radio Frequency Receiver 865MHz / 915MHz (RF-RX1-865/915)
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