System model: SOYO-EW02
Wireless teaching microphone system for classroom audio/sound solution, consist of wireless microphone transmitter (for teacher), and wireless audio receiver (for classroom)
1. For teacher, following wireless microphone for options:
Handle type, Headset type, lavalier/lapel type, belt-pack/body-pack type, etc.
2. For classroom, following receiver for options:
A. Wireless speakers version (suppporting wall mounted and floor-standing installation)
B. Wireless receivers version (connecting with classroom amplifier/active speakers)
C. Wireless amplifiers version (connecting with classroom passive speakers)
From this demo diagram, we are clear to know:
1. Teacher neck-hanging wireless microphone transmitter (left side) to talk on class, wireless receiver (right side one) installing on classroom PA system to broadcast teacher's voice, which clearly picked up by each student.
2. Its wireless voice transmission upto 50~60 meters (from headset mic to wireless speaker)
3. This solution also can be dual-channel wireless speaker version, (supporting two microphones talking on class), teacher can choose min portable mic or handle mic, student can handle one pass-around mic to answer questions.
PLUS:
Features of wireless microphones: (neck-hanging type)
Features:
1). The minimum size of our product, easily for taking and neck-hanging.
2). Powered by rechargeable Li-Battery.
3). Embedded Charge circuit with USB interface.
4). Channel and volume adjustment function.
5). Supporting two types 3.5mm audio input. (microphone and stereo line in)
6). Noise elimination circuit switching on power switch, eliminating noise of power on/off.
7). Supporting Low power consumption for a wide range of input voltage.
8). Supporting fixed ID working mode, point to point and point to multi point, automatic scan channel function to avoid interference easily.
9). Audio muting function when receiving weak signals or no signals.
10). Capable of being simultaneously used for over 100 classrooms and never crosstalk!
Features of wireless classroom microphone receiver (dual-channel)
Features:
1). Dynamic range: 90dB audio.
2). Receiver sensitivity: ≥ -85dBm.
3). Adjacent channel suppression: 45dB.
4). Image rejection: 30dB.
5). Supporting channels and volume display.
6). Supporting 80 channels and channel adjustment.
7). Rack-mount professional design, be able to installed into cabinet.
8). Dual-receiver designing supports two wireless microphones talking simultaneously.
|
NO. |
Description |
Wireless Microphone Receiver (dual-channel) |
|
1 |
Work frequency range |
2400 - 2483 MHz |
|
2 |
Frequency response |
20 Hz - 20 KHz (+/-3dB) |
|
3 |
Work temperature |
-15 ~ +65 |
|
4 |
Work voltage |
DC 9V |
|
5 |
Latency time |
1.1~1.8 ms |
|
6 |
Work current |
Max 300 mA |
|
7 |
Distortion |
0.8% @1 KHz |
|
8 |
Frequency stability |
150 KHz |
|
9 |
Channel Space |
1 MHz |
|
10 |
Optional Channels |
80 CH |
|
11 |
Baud rate |
2 M bps |
|
12 |
Sampling ratio |
48 kHz@16 bit*2 |
|
13 |
SNR |
95 dB |
|
14 |
Dimension |
422mm*318mm*73mm |
|
15 |
Weight |
1.77 kg (3.90 lbs) |
SOYO Technology Development Co., Ltd. As a leading professional provider in digital wireless audio/video products, solutions and OEM/ODM service, owned independent intellectual property rights and core technologies.
Based on these core technologies, SOYO has developed a series digital wireless audio product which include digital wireless audio, digital wireless headphones, digital wireless audio transceiver, digital wireless simultaneous interpretation systems, digital wireless tour guide device (wireless team to explain the device), digital wireless mobile voice classroom, digital wireless tour guide series professional system solutions. Since 2005, these programs has been in domestic and foreign universities, educational institutions, tourist attractions, museums, government agencies, professional firms, to promote plant widely used in education, tourism, VIP reception, audio industry and IT digital domain, SOYO has become well-known brands.
The core modules and software were researched and developed by SOYO technology, which passed the North American FCC / EU CE / Japan TELEC rigorous testing and received FCC / CE / TELEC certification certificates, product quality and excellent transmission performance, stability, and test equipment measured transmission frequency range of 20Hz - 20000Hz, transmission distance, the highest audio sample rate (64k), HDCD high-fidelity sound quality, up to 80 selectable frequencies (easy to avoid the interference frequency), the shortest latency and encrypted transmission (latency less than 0.5ms which up to highest standard in the field through Wireless transmission).
SOYO Products and programs include: 2.4G digital wireless team explanation system, digital tour guide systems, wireless digital microphone, 2.4G wireless digital speakers, 2.4G wireless digital amplifier, 2.4G wireless digital MP3 music microphone, 2.4G wireless digital headphones, 2.4G wireless digital transceivers, all of them passed the FCC, CE, TELEC certification.
