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    Bellman & Symfon Domino Personal Hearing System — Datasheet

    September 08, 2026 3 min read

    A wireless digital personal hearing system delivering crystal-clear, encrypted stereo audio via transmitter/receiver units.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Overview

    Bellman Audio Domino is a revolutionary personal hearing system that uses digital state-of-the-art sound processing and wireless wideband technology to bring out speech clearly in difficult listening situations. Domino delivers crystal-clear stereo sound, free from background noise and feedback, with no risk of eavesdropping. Whether you only have occasional trouble hearing or already use a hearing device, Domino can make a significant difference in daily life.

    How It Works

    Domino consists of a transmitter and a receiver, each equipped with state-of-the-art microphones. Sound is picked up by the transmitter and converted into digital data; speech is clarified and background noise is eliminated. The sound is then streamed over an encrypted wireless radio link to the receiver. The transmitter also has a stereo input for streaming high-quality audio directly from a TV, MP3 player, or stereo system. The receiver amplifies the sound and sends it to headphones, earphones, or a neck loop, with easy one-button control of both units.

    Key Features

    • High-Definition Audio — all-digital technology streams full stereo sound with outstanding clarity and definition
    • Wireless Secure Encryption — state-of-the-art digital encryption makes eavesdropping impossible
    • Global Frequency Standard — uses the 2.4 GHz global frequency standard, usable anywhere in the world
    • Easy Connect — ready with the touch of a button; connects to TV, stereo system, or MP3 player
    • Remote Zoom — both transmitter and receiver feature omni-directional and directional microphones, controllable from the receiver
    • Easy to use — all common features accessible with a single push of a button, no complicated menus
    • Worldwide Warranty — two-year worldwide warranty, designed by Bellman & Symfon of Sweden

    Size & Weight

    Dimension Value
    Height 99 mm
    Width 48 mm
    Depth 22 mm
    Weight 69 grams each (transmitter and receiver)

    In the Box

    • BE2210 Receiver unit
    • BE2230 Transmitter unit
    • BE9141 Travel case
    • BE9142 Universal charger (4 mains plugs: EU, USA, Australia, China)
    • BE9139 Charging cable, USB (2)
    • BE9136 Tie clip microphone
    • BE9137 Stereo cable, 1.5 m with adapter (3.5 mm jack to RCA/phono connectors)
    • BE9135 Neck strap with safety clasp (2)
    • BE9124 In-ear earbuds
    • User manual and pocket reference guide

    Receiver & Transmitter Controls

    Receiver: Tone control, volume control, internal mic, LED indicator, headphone output, microphone, external sound selector, volume/tone indicator, charger input.

    Transmitter: Pairing button (pairs with receiver), microphones, LED indicator, line-in, on/off, charger input.

    Technical Specifications

    Category Spec
    Input signals Built-in microphones (omnidirectional and directional) on both units; external sound source input via 2.5 mm stereo jack plug (0 dBV max input signal)
    Output signals Headphone socket: 3.5 mm stereo jack plug; Distortion: 0.05% THD (electrical); Frequency range: 40–10,000 Hz; Tone control: ±10 dB, cut-off 1.6 kHz; Output power: 100 mW (16 Ω load)
    Radio communication 2.4 GHz, 3 channels; range 25 metres (clear line of sight, indoors — walls, concrete, and metal reduce range); encrypted communication; automatic channel searching; can coexist with other 2.4 GHz devices
    Power supply 3.7V Li-Ion battery; operating time 8–12 hours (standard battery); transmitter/receiver charging time 2.5 hours each
    Regulatory CE, FCC, RoHS, WEEE; for use in dry environments

    Compatible Accessories

    • BE9122 Stereo headphones
    • BE9124 Stereo in-ear earbuds
    • BE9125 Stetoclips
    • BE9126 Stereo cable set, 5 m (16 feet)
    • BE9127 Tie clip microphone, 5 m (16 feet)
    • BE9128 Neck loop
    • BE9143 USB car charger
    • BE1360 Scart switch

    Manufacturer

    © Bellman & Symfon AB. Bellman, Bellman Visit, Bellman Audio, and Bellman & Symfon are registered trademarks. All product designs are patented.