12
Manual
1
Transmitter
、
Working voltage
~
orking current
working current
working current of input
~
Input Working currentof MIC
Maximum output power
3.7V (3.2V 4.2V)
Static w
19
3mA
Dynamic
45mA
Maximum
25mA
Input signal rage 100 mV 800 mV
20mA
Receiving frequency 2.3MHz
0.02MHz
Distortion
1%
S/N ratio
70dB
800mV / 25mW
LI-ion battery charging time 3~4h
±
≤
≤
≤
±
≤
≥
2
Receiver
、
Working time
Working voltage
12V
0.8V, 400mA
Working current
95 8mA
Standby current
10 4mA
Trans. frequency
2.3MHz
0.02MHz
Signal input limiting volt.
400mV
Signal standby starting volt.
50mV
Signal input standby volt.
40mV
Signal input frequency
20Hz - 20KHz
Signal input range
120mV-1.5V
Li-ion battery recharging current
125 5mA
Transmission distance
10M
No signal standby time
±
±
±
±
≥
≥
≤
±
≥
12 hours for TV IR listener function
24 hours for personal listener function
60s
5s(when no signal is received,the
transmitter goes into standby mode
automatically)
±
F. Technical specifications
01
03
Manual
B. Introduction and Product features
Introduction
Features
EchoIR
EchoIR
is a most versatile and technically sophisticated infra red listening system.
This equipment will give you complete freedom to listen to your favorite TV or
programs, enjoy music or conversation, without irritating leads running across
the floor. A microphone is also included to further enhance the flexibility of the
system allowing it to be used as a personal listener to assist when talking, using the
telephone or computer. Please read these instructions carefully as they will ensure
that you get the most out of your new
system.
radio
1.High power transmitter gives excellent range with high quality audio sound.
2.Automatic signal control circuit adjusts any sudden volume increases to
keep the output volume stable.
3.Balance control allows individual setting of balance for left and right ears
headset version only.
4.Tone control, easy to adjust to individuals preferred setting.
5.Duel charging bay on transmitter for option of two receivers.
6.Comfortable lightweight receiver only 55gms.
7.Comfortable in the ear design soft ear buds to provide maximum amplification
with maximum outside noise reduction.
8.Audio and microphone inputs on headset enable headset to be used as a
personal listener without use of the transmitter.
9.Approximately 12 hours of listening pleasure on a single full charge.
10.Li-ion charging with auto switch off.
Note: balance is pre-set for neckloop system and must
not be adjusted.
