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Now available for hire/rental
The invisity ear prompter by Phonak is the smallest in-ear RF receiver in the world and the perfect choice for presenters and performers who require crystal clear audio prompts.
invisity is completely wireless, sits invisibly inside the ear canal, and weighs just 1.5g. It offers total freedom of movement and is ergonomically designed for day-long wearer comfort.
Today invisity is used and trusted by broadcasters and filmmakers worldwide.
invisity flex
1 channel (7 MHz range), programmable via the optional invisity programming unit (IPU) or through a Phonak dealer.
| Frequency | fixed or programmable (single or multi), 7MHz band |
| Frequency response | 200 Hz - 4500 Hz |
| Audio signal output | 94 dBSPL measured in a 1.3 cc ear simulator (Volume 1 default setting), 102 dBSPL measured in a 1.3 cc ear simulator (Volume 2 default setting), or adjustable on 4-channel model |
| Noise filter | squelch |
| Sensitivity | SINAD >17 dB @ E=3mV/m |
| Channel selectivity | >50 dB (at 200 kHz channel spacing) |
| Antenna | magnetic, integral |
| Spurious emissions | below -57 dBm ERP |
| Distortion | >5% (depends on volume setting) |
| Dimensions | 19 x 12 x 12mm (0.74" x 0.47" x 0.47") |
| Weight | 1.5 g (inc. battery) |
| Battery life | 13 h (constant reception) using Phonak battery |
| Power consumption | 3.3 mA |
| SNR (signal over noise ratio) | approx. 41dB in the AGC @ 1 kHz |
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