Products
Free-BOX
Free-BOX
Free-BOX
Free-BOX
Free-BOX
Free-BOX
Free-BOX

Speech teaching wireless amplification system


FreeBox is a wireless small amplifier speaker specially designed for speakers. Its sound is rich and delicate, with distinct levels, elegant and streamlined appearance design, and fashionable and exquisite IMD craftsmanship, which demonstrates the extraordinary charm of every lecturer. This system is suitable for lectures, training, salon sharing, teaching, small meetings and other occasions.


  • Description
  • Specifications
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FreeBox

• High sensitivity condenser microphone, pickup sound easily in 10cm range 

• Automatic data synchronization. Automatically starts the channel saved last time when the system starts up 

• Integrated PowerPoint page flipping function in bluetooth adapter. No need to buy PowerPoint page flipping any more

• Equipped with the function of reverberation, appropriate adjustments to the reverb ratio can create good atmosphere to render your speech 

• 30M working distance for wireless microphone, ideal for small speech and no worry about frequency drop out 

• Built-in DSP processing, perfectly compensates acoustics system, effectively increasing the microphone gain

• With SD/USB disk/bluetooth function, the system supports lossless audio format decoding, perfectly reproducing the original sound

• MP3 player recording function

• High-energy lithium-ion battery provides up to 8 hours working time

• External audio input can be directly connected to computer's 3.5 interface to realize audio output


FreeMic

• Automatic data synchronization

• High sensitivity condenser microphone, pickup sound easily in 10cm range

• Encrypted by ID code ensures the system excellent confidentiality 

• USB charging, the transmitter works more than 6 hours after fully charged 

• Powerpoint flipping function makes teaching and presentation much easier

• 20M working distance for wireless microphone, ideal for small speech and no worry about frequency drop out

FreeBox

Frequency Range: 500~937.5MHz

Oscillation Pattem : PLL

Working Range: 30meters

Modulation: pi/4 DQPSK

Pilot Tone: digital pilot tone

Optional Frequency: 128

System Compatibility: 4pcs

Frequency Response : 70Hz ~ 15KHz (±3dB)
Dynamic Range: > 102dB
T.H.D.: < 0.05%
S/N Ratio: > 98dB(A)
RF Sensitivity: < -92dBm
Image Rejection: > 55dB
Output Connectors: (XLR×5)/(1/4-inch connector×1)
Audio Output Level:  (XLR: +5dBV) / (1/4-inch connector: +5dBV)
Output Impedance: (XLR: 3KΩ)/(1/4-inch connector: 3KΩ)
Display: LCD×1
Power Requirements:  24V/3A DC power supply adapter
Operating Temperature Range: 0-50 ℃

Dimensions: 215(H)*230(L)*100(W)mm

Weight: 2000g

 

FreeMic

Gain Adjustment Range: -5~5dB

Input Impedance: 2.2KΩ

Output Power: 10mW

Spurious: >50dB

Pilot tone: digital pilot tone

Display: OLED

Power Requirements: 1.5V x2(AA)

Battery Life: >8H/1300mAH

Dimensions: 180(L)*54(Φ)mm

Weight: 110g


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