Sonumaxx 2.4 Digital Headset System - transmitter and stethoscope receiver
Sonumaxx 2.4 Digital Headset System stethoscope receiver
Sonumaxx 2.4 Digital Headset System transmitter

Sonumaxx 2.4 Digital Headset System (A-4108-0)

Regular price £116.90 exc. VAT
£140.28 inc. VAT £0.00

Return Policy

All purchased equipment comes with a 28 day return policy, whereby if an item is returned within this period in its original packaging and in a saleable condition, then the buyer is entitled to a full refund of the price of the item. Please note that this does not include postage & packaging.

With adjustable volume up to 120 dB, the Sonumaxx 2.4 Headset System from Humantechnik has exceptionally clear audio reproduction and high-quality sound - reliable and free of background noise.

A special feature of the Sonumaxx 2.4 Headset System is the possibility to switch from the reception of the TV sound to the built in microphone of the receiver so that you can listen to conversations too.

The transmitter serves as storage and docking station, at the same time recharging the receiver's battery. A fully charged battery will last 6 to 8 hours, depending on the set volume. Two batteries are included, so these can be used and recharged alternatingly.

A button on the front of the sonumaxx 2.4 transmitter serves to select one of three sound profile presets, so the user can choose which one suits him best.

The Sonumaxx 2.4 Headset System has digital (Optical/Toslink) connections, and also Analogue audio connection or you can use the supplied Microphone to pick up the sound.


  • Operating time per battery charge: approx. 6 - 8 hours;
  • Battery type: rechargeable Li-Polymer 3,7V 350 mAh;
  • Included batteries: 2;
  • Recharge time: approx. 5 h (2.5h for 90% recharge);
  • Maximum volume: approx 120 dB (A);
  • Weight: 66 g.


 Instruction manual
 Declaration of conformity

Technical Information

  • Transmission method: digital FM (Stereo);
  • Carrier frequency: 2.4 GHz;
  • Frequency response: 30 - 20000 Hz;
  • Harmonic distorsion: < 0.5 %;
  • Signal-to-noise ratio: > 75 dB;
  • Working range: 0° C – 55°.

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