WDA-700 Wireless Teaching System

  • Education
  • Speaker Cabinet
  • UHF 790MHz-805.750MHz and 806MHz-821.750MHz frequency bands, 64 frequencies per band, totally 128 selectable frequencies

  • Adopts patent anti-interference technology, the transmitter can be used free from interference in any classroom which has installed the WDA700 wireless speaker 

  • The transmit frequency is automatically and synonously set by the receiver (main speaker) via infrared data transmission 

  • High quality wooden speaker housing and advanced audio circuitry design features natural and distortion-free sound

  • Stereo left and right speakers, maximum output power is up to 30W 

  • AUX IN socket for convenient connection with signal from campus broadcasting or DVD, etc 

  • LINE OUT function meets the demands of multimedia teaching

  • The transmitter is supplied with high capacity rechargeable lithium ion batteries; the continuous playtime is up to 12 hrs 

  • Elegant and durable metal alloy housing for transmitter

  • Choices of installation: mounting with tripod, hanging on wall, or putting on the table directly

Product Detail

  • Specification
  • Application
  • Product Content
• Receiver Sensitivity: -80dBm SN>25dB
• Noise Lock: -91dBm±1dBm
• Frequency Range: 790.000MHz - 821.750MHz
• Frequency Band: two bands 
 (790MHz-805.750MHz, 806MHz-821.750MHz)
• Frequency Response: 80 Hz-16kHz
• Speaker System: two speakers (stereo)
• Max. Output Power: 30W x 2
• Output Impedance: 4Ω
• Power Adaptor: DC 16V/5A
• Transmit Power: <10mW
• Transmit Current Consumption: 40-50mA
• Transmit Recharging Current: 350mA
• Distance of Infrared Data Transmission: 6-8m (in straight)
• Audio Modulation: 7-8kHz (Input 15mV)
• Pilot Frequency Modulation: 8-9kHz (Max.)
• Wireless Operating Range: 20-30m (indoors)
• Recharging Period of Transmitter: 3-5 hrs
• Playtime of Transmitter: >12hrs
• Low Power Indication of Transmitter: 3.2V±1V
Multimedia teaching, etc
Main speaker1pc
Auxiliary speaker1pc
WDA-700 body pack1pc
Power adaptor of speaker1pc
Power adaptor of transmitter1pc
3.7V/1000mAh lithium-ion battery1pc (inside the body-pack)
Headworn microphone HM-800 1pc
Lavalier microphone TCM-3801pc
Connection cable of speaker1pc
User Manual 1pc
"L" fixing frame2pcs
M3/8" x 26mm Screw with Spring washer and Rubber gasket 2pcs
Package:carton with sponge 


  • Specification
  • Application
  • Product Content
• Receiver Sensitivity: -80dBm SN>25dB
• Noise Lock: -91dBm±1dBm
• Frequency Range: 790.000MHz - 821.750MHz
• Frequency Band: two bands 
 (790MHz-805.750MHz, 806MHz-821.750MHz)
• Frequency Response: 80 Hz-16kHz
• Speaker System: two speakers (stereo)
• Max. Output Power: 30W x 2
• Output Impedance: 4Ω
• Power Adaptor: DC 16V/5A
• Transmit Power: <10mW
• Transmit Current Consumption: 40-50mA
• Transmit Recharging Current: 350mA
• Distance of Infrared Data Transmission: 6-8m (in straight)
• Audio Modulation: 7-8kHz (Input 15mV)
• Pilot Frequency Modulation: 8-9kHz (Max.)
• Wireless Operating Range: 20-30m (indoors)
• Recharging Period of Transmitter: 3-5 hrs
• Playtime of Transmitter: >12hrs
• Low Power Indication of Transmitter: 3.2V±1V
Multimedia teaching, etc
Main speaker1pc
Auxiliary speaker1pc
WDA-700 body pack1pc
Power adaptor of speaker1pc
Power adaptor of transmitter1pc
3.7V/1000mAh lithium-ion battery1pc (inside the body-pack)
Headworn microphone HM-800 1pc
Lavalier microphone TCM-3801pc
Connection cable of speaker1pc
User Manual 1pc
"L" fixing frame2pcs
M3/8" x 26mm Screw with Spring washer and Rubber gasket 2pcs
Package:carton with sponge