LCD Display Digital IR Receivers With 8 / 16 / 32 Channel Battery Removable

Product Specification

Digital IR Receivers with 4/8/16/32 Channel

VISSONIC Translation Receivers Battery removable VIS-VLI703A

Feature

Compliant to IEC 61603-7 and IEC 60914

Compatible with any other IR simultaneous interpretation system compliant to IEC 61603-7

Digital infrared processor with DQPSK digital modulation/demodulation technology

Transmitting in 2~8 MHz frequency band eliminates disturbance from high frequency lighting systems

Channel selection via up/down button, at most 4,8,16 or 32 channels available

LCD display with channel number, language name, battery and signal status indication

Number of available channels is always the same as the number of channels in use by the system, eliminating the need to scroll through unused channels

Adjustable volume

Unique 270º super wide reception angle, ensuring perfect sound quality even when casually placed

Audio signal automatically muted when signal is too low, ensuring that the user receives only high quality audio.

Ergonomically compact and elegant design

Lightweight and handy receiver in conjunction with single earphone or headphone for easy and comfortable use

Can be hung over the neck via a nice strap or fit into the shirt pocket

Freedom of movement within the range of IR power radiator

No limit to the receiver number within the IR power radiation range

Works without errors, even in bright sunlight

Built-in high precision rechargeable circuitry to prolong battery life

Environmentally-friendly lithium rechargeable battery pack

No power consumption and auto-off when headphone is disconnected after 5 minutes

Digital IR Receivers with 4/8/16/32 Channel

Feature

Compliant to IEC 61603-7 and IEC 60914

Compatible with any other IR simultaneous interpretation system compliant to IEC 61603-7

Digital infrared processor with DQPSK digital modulation/demodulation technology

Transmitting in 2~8 MHz frequency band eliminates disturbance from high frequency lighting systems

Channel selection via up/down button, at most 4,8,16 or 32 channels available

LCD display with channel number, language name, battery and signal status indication

Number of available channels is always the same as the number of channels in use by the system, eliminating the need to scroll through unused channels

Adjustable volume

Unique 270º super wide reception angle, ensuring perfect sound quality even when casually placed

Audio signal automatically muted when signal is too low, ensuring that the user receives only high quality audio.

Ergonomically compact and elegant design

Lightweight and handy receiver in conjunction with single earphone or headphone for easy and comfortable use

Can be hung over the neck via a nice strap or fit into the shirt pocket

Freedom of movement within the range of IR power radiator

No limit to the receiver number within the IR power radiation range

Works without errors, even in bright sunlight

Built-in high precision rechargeable circuitry to prolong battery life

Environmentally-friendly lithium rechargeable battery pack

No power consumption and auto-off when headphone is disconnected after 5 minutes

Technical Specifications

System Specifications

Modulation…………………………DQPSK, according to IEC 61603-7 Modulation frequency

Carriers 0 to 5…………………………2 to 6 MHz, according to IEC 61603-7

Frequency response…………………………20 Hz to 10 kHz (-3dB) at standard quality;

20 Hz to 20 kHz (-3dB) at perfect quality

THD at 1 KHz …………………………<0.05%

Isolation…………………………>80 dB

Dynamic range…………………………>80 dB

Weighted SNR…………………………>80 dBA

Input range…………………………-12 dBV ~ +12 dBV (adjustable)

Electrical

IR irradiance level…………………………4 mW/m2 per carrier

Angle of sensitivity…………………………270º

Headphone output level at 2.4 V 450 mVrms (speech at maximum volume, 32 Ohm headphone)

Headphone output freq. range…………………………20 Hz to 20 kHz

Headphone output impedance…………………………32 Ohm to 2 kOhm

Max. SNR…………………………>80 dBA

Supply voltage…………………………3V to 4.2V,nominal 3.7 V

Headphone jack unplugged after 5 minutes…………………………0 mA Battery life

Rechargeable battery pack …………………………24 hours

Mechanical

Dimensions (H x W x D) …………………………159 x 49 x 23 mm

Weight………………………… excluding battery 85 g

including battery 128g (0.27 lb)

Color…………………………black with silver