Special Projects Audio Evo - Manual (Page 16)

9. System Features
 Operates in an FCC-safe UHF frequency band – 16 operating frequencies over 3 television
channels (49, 50, 51).
 Automatically scans upward to the next open frequency at the touch of a button.
 Switching antenna diversity to ensure the reception quality and avoid dropouts.
 Super high sensitivity, extremely low noise transmission and reception.
 Built- in recharging system eliminates battery cost.
10. System Specification
AW-25, AW-25R, SP-25, SP-25R Scan16 Receivers
Carrier Frequency Range: UHF band, 682.375 – 697.125 MHz
Frequency Stability: +/- 0.005%
Receiving Sensitivity: 8 dBμV over 80dB S/N ratio
Image and Spurious Rejection: 80 dB minimum
Modulation: FM
Signal to Noise: ＞94dB, at 48KHz deviation and 60dBV antenna input
Audio Frequency Response: 80Hz to 12KHz ( 3dB) 
T.H.D. Less than1.0% (at 1KHz)
Power Supply: DC 12V ~ 18V
Audio Output: Balanced and unbalanced outputs, (Mic.=-20dB / Line = 0dB)
Current Consumption: 110mA at 3V
Evo True Wireless Fitness Transmitter
Carrier Frequency Range: UHF band, 682 – 697 MHz
RF Power Output: 7.5 mW
Microphone Element: Noise canceling, bi-directional condenser
Battery: Rechargeable Lithium-Polymer
Operating Range: Up to 300 feet
Talk Time: Up to 4 hours, depending on use
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