FreeBOX Presentation Wireless Microphone System
Introduce

FreeBOX Wireless Presentation Wireless Microphone System
• High sensitivity condenser microphone, pickup sound easi ly in 10cm range
• Automatic data synchronization. Automatical ly starts the channel saved last time when the system starts up
• Integrated PowerPoint page turning function in bluetooth adapter. No need to buy PowerPoint page turner  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 smal l speech and no worry about frequency drop out
• Bui lt-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 l ithium-ion battery provides up to 8 hours working time

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

RF Carrier Range: 500~937.5MHz
Osci l lation Pattern:PLL
Working Range: 30M in ideal condition
Digital Modulation Method: pi/4 DQPSK
Modulation: FM
Pi lot Tone: digital pi lot tone
Max Channel Number:128 channels (same as 4 channels/
depends on different frequency band
System  Compatibi l ity: 4pcs
Frequency Response: 70Hz~ 15KHz(±3db)
Dynamic Range: > 102db
THD: < 0.8%
Signal-to-noise Ratio: > 98db(A)
RF Sensitivity: <-92dbm for 30db S/N Ratio
Image Rejection: > 55db
Output Connector: (XLR×2)/(1/4-inch connector×1)
Audio Output Level: (XLR: +8dbV) / (1/4-inch connector:
+6dbV)
Output Impedance: 3KΩ
Display: nixie tube×2
Power Requirements:12V/0.5A DC power supply adapter

Operaing Temperature Range: 0-50 ℃


• Automatic data synchronization
•The system has universality, i. e. the Tmic-2 transmitter can be connected to any  Tmic-2R receiver
• Encrypted by ID code ensures the system excellent confidentiality

•USB charging,the transmitter works more than 8 hours after fully charged

•PowerPoint page turning function makes teaching and presentation much easier

•Infrared radiation indicator function



Gain  Adjustable range: -∞ ~ +5dB
Input  Impedance: 2.2KΩ
RF Power Output: 10mW
Spurious Rejection : > 50dB

Pilot Tone: digital pilot tone
Display : OLED
Power Requirements:  3.7V lithium battery
Battery Life: > 8 hours / 1300mAH
Overall Dimensions: 115*20*26mm
Weight: 45g