Cordless Infra-Red Headphones RI810

Sennheiser Electronic (Labor W); Wennebostel

  • Year
  • 1996 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 155653

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 2,4 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Cordless Infra-Red Headphones RI810 - Sennheiser Electronic Labor W;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 230 x 125 x 25 mm / 9.1 x 4.9 x 1 inch
  • Notes
  • 2,3/2,38 MHz. 40-15 000 Hz. Weight: 51 g.
    Transmitter: TI 810, Range: 12 m, Covered Area: 60 m2, Dimensions: 150×150×47 mm. 24 VDC. Net weight: 94 g. Produced in Ireland, but still a German brand.
  • Net weight (2.2 lb = 1 kg)
  • 0.051 kg / 0 lb 1.8 oz (0.112 lb)
  • Source of data
  • -- Original prospect or advert

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